SACRED MUSIC

“Music is among the many and great gifts of nature with which God, in Whom is the harmony of the most perfect concord and the most perfect order, has enriched men, whom He has created in His image and likeness.[2] Together with the other liberal arts, music contributes to spiritual joy and the delight of the soul.
5. On this subject Saint Augustine has accurately written: “Music, that is the science or the sense of proper modulation, is likewise given by God’s generosity to mortals having rational souls in order to lead them to higher things.”[3]
6. No one, therefore, will be astonished that always and everywhere, even among pagan peoples, sacred song and the art of music have been used to ornament and decorate religious ceremonies. This is proved by many documents, both ancient and new. No one will be astonished that these arts have been used especially for the worship of the true and sovereign God from the earliest times” – Pope Pius XII

Instruction on Sacred Music
General principles
1. Sacred music, being a complementary part of the solemn liturgy, participates in the general scope of the liturgy, which is the glory of God and the sanctification and edification of the faithful. It contributes to the decorum and the splendor of the ecclesiastical ceremonies, and since its principal office is to clothe with suitable melody the liturgical text proposed for the understanding of the faithful, its proper aim is to add greater efficacy to the text, in order that through it the faithful may be the more easily moved to devotion and better disposed for the reception of the fruits of grace belonging to the celebration of the most holy mysteries.
2. Sacred music should consequently possess, in the highest degree, the qualities proper to the liturgy, and in particular sanctity and goodness of form, which will spontaneously produce the final quality of universality.
It must be holy, and must, therefore, exclude all profanity not only in itself, but in the manner in which it is presented by those who execute it.
It must be true art, for otherwise it will be impossible for it to exercise on the minds of those who listen to it that efficacy which the Church aims at obtaining in admitting into her liturgy the art of musical sounds.
But it must, at the same time, be universal in the sense that while every nation is permitted to admit into its ecclesiastical compositions those special forms which may be said to constitute its native music, still these forms must be subordinated in such a manner to the general characteristics of sacred music that nobody of any nation may receive an impression other than good on hearing them.
II. The different kinds of sacred music
3. These qualities are to be found, in the highest degree, in Gregorian Chant, which is, consequently the Chant proper to the Roman Church, the only chant she has inherited from the ancient fathers, which she has jealously guarded for centuries in her liturgical codices, which she directly proposes to the faithful as her own, which she prescribes exclusively for some parts of the liturgy, and which the most recent studies have so happily restored to their integrity and purity.
On these grounds Gregorian Chant has always been regarded as the supreme model for sacred music, so that it is fully legitimate to lay down thefollowing rule: the more closely a composition for church approaches in its movement, inspiration and savor the Gregorian form, the more sacred and liturgical it becomes; and the more out of harmony it is with that supreme model, the less worthy it is of the temple.
The ancient traditional Gregorian Chant must, therefore, in a large measure be restored to the functions of public worship, and the fact must be accepted by all that an ecclesiastical function loses none of its solemnity when accompanied by this music alone.
Special efforts are to be made to restore the use of the Gregorian Chant by the people, so that the faithful may again take a more active part in the ecclesiastical offices, as was the case in ancient times.

4. The above-mentioned qualities are also possessed in an excellent degree by Classic Polyphony, especially of the Roman School, which reached its greatest perfection in the sixteenth century, owing to the works of Pierluigi da Palestrina, and continued subsequently to produce compositions of excellent quality from a liturgical and musical standpoint. Classic Polyphony agrees admirably with Gregorian Chant, the supreme model of all sacred music, and hence it has been found worthy of a place side by side with Gregorian Chant, in the more solemn functions of the Church, such as those of the Pontifical Chapel. This, too, must therefore be restored largely in ecclesiastical functions, especially in the more important basilicas, in cathedrals, and in the churches and chapels of seminaries and other ecclesiastical institutions in which the necessary means are usually not lacking.

5. The Church has always recognized and favored the progress of the arts, admitting to the service of religion everything good and beautiful discovered by genius in the course of ages — always, however, with due regard to the liturgical laws. Consequently modern music is also admitted to the Church, since it, too, furnishes compositions of such excellence, sobriety and gravity, that they are in no way unworthy of the liturgical functions.
Still, since modern music has risen mainly to serve profane uses, greater care must be taken with regard to it, in order that the musical compositions of modern style which are admitted in the Church may contain nothing profane, be free from reminiscences of motifs adopted in the theaters, and be not fashioned even in their external forms after the manner of profane pieces.

6. Among the different kinds of modern music, that which appears less suitable for accompanying the functions of public worship is the theatrical style, which was in the greatest vogue, especially in Italy, during the last century. This of its very nature is diametrically opposed to Gregorian Chant and classic polyphony, and therefore to the most important law of all good sacred music. Besides the intrinsic structure, the rhythm and what is known as the conventionalism of this style adapt themselves but badly to the requirements of true liturgical music.
III. The liturgical text
7. The language proper to the Roman Church is Latin. Hence it is forbidden to sing anything whatever in the vernacular in solemn liturgical functions — much more to sing in the vernacular the variable or common parts of the Mass and Office.
8. As the texts that may be rendered in music, and the order in which they are to be rendered, are determined for every liturgical function, it is not lawful to confuse this order or to change the prescribed texts for others selected at will, or to omit them either entirely or even in part, unless when the rubrics allow that some versicles of the text be supplied with the organ, while these versicles are simply recited in the choir. However, it is permissible, according to the custom of the Roman Church, to sing a motet to the Blessed Sacrament after the Benedictus in a solemn Mass. It is also permitted, after the Offertory prescribed for the mass has been sung, to execute during the time that remains a brief motet to words approved by the Church.
9. The liturgical text must be sung as it is in the books, without alteration or inversion of the words, without undue repetition, without breaking syllables, and always in a manner intelligible to the faithful who listen.
IV. External form of the sacred compositions
10. The different parts of the mass and the Office must retain, even musically, that particular concept and form which ecclesiastical tradition has assigned to them, and which is admirably brought out by Gregorian Chant. The method of composing an introit, a gradual, an antiphon, a psalm, a hymn, a Gloria in excelsis, etc., must therefore be distinct from one another.
11. In particular the following rules are to be observed:
(a) The Kyrie, Gloria, Credo, etc., of the Mass must preserve the unity of composition proper to the text. It is not lawful, therefore, to compose them in separate movements, in such a way that each of these movements form a complete composition in itself, and be capable of being detached from the rest and substituted by another.
(b) In the office of Vespers it should be the rule to follow the Caeremoniale Episcoporum, which prescribes Gregorian Chant for the psalmody and permits figured music for the versicles of the Gloria Patri and the hymn.
It will nevertheless be lawful on greater solemnities to alternate the Gregorian Chant of the choir with the so called falsi-bordoni or with verses similarly composed in a proper manner.
It is also permissible occasionally to render single psalms in their entirety in music, provided the form proper to psalmody be preserved in such compositions; that is to say, provided the singers seem to be psalmodising among themselves, either with new motifs or with those taken from Gregorian Chant or based upon it.
The psalms known as di concerto are therefore forever excluded and prohibited.
(c) In the hymns of the Church the traditional form of the hymn is preserved. It is not lawful, therefore, to compose, for instance, a Tantum ergo in such wise that the first strophe presents a romanza, a cavatina, an adagio and the Genitori an allegro.
(d) The antiphons of the Vespers must be as a rule rendered with the Gregorian melody proper to each. Should they, however, in some special case be sung in figured music, they must never have either the form of a concert melody or the fullness of a motet or a cantata.
V. The singers
12. With the exception of the melodies proper to the celebrant at the altar and to the ministers, which must be always sung in Gregorian Chant, and without accompaniment of the organ, all the rest of the liturgical chant belongs to the choir of levites, and, therefore, singers in the church, even when they are laymen, are really taking the place of the ecclesiastical choir. Hence the music rendered by them must, at least for the greater part, retain the character of choral music.
By this it is not to be understood that solos are entirely excluded. But solo singing should never predominate to such an extent as to have the greater part of the liturgical chant executed in that manner; the solo phrase should have the character or hint of a melodic projection (spunto), and be strictly bound up with the rest of the choral composition.
13. On the same principle it follows that singers in church have a real liturgical office, and that therefore women, being incapable of exercising such office, cannot be admitted to form part of the choir. Whenever, then, it is desired to employ the acute voices of sopranos and contraltos, these parts must be taken by boys, according to the most ancient usage of the Church.
14. Finally, only men of known piety and probity of life are to be admitted to form part of the choir of a church, and these men should by their modest and devout bearing during the liturgical functions show that they are worthy of the holy office they exercise. It will also be fitting that singers while singing in church wear the ecclesiastical habit and surplice, and that they be hidden behind gratings when the choir is excessively open to the public gaze.
VI. Organ and instruments
15. Although the music proper to the Church is purely vocal music, music with the accompaniment of the organ is also permitted. In some special cases, within due limits and with proper safeguards, other instruments may be allowed, but never without the special permission of the Ordinary, according to prescriptions of the Caeremoniale Episcoporum.
16. As the singing should always have the principal place, the organ or other instruments should merely sustain and never oppress it.
17. It is not permitted to have the chant preceded by long preludes or to interrupt it with intermezzo pieces.
18. The sound of the organ as an accompaniment to the chant in preludes, interludes, and the like must be not only governed by the special nature of the instrument, but must participate in all the qualities proper to sacred music as above enumerated.
19. The employment of the piano is forbidden in church, as is also that of noisy or frivolous instruments such as drums, cymbals, bells and the like.
20. It is strictly forbidden to have bands play in church, and only in special cases with the consent of the Ordinary will it be permissible to admit wind instruments, limited in number, judiciously used, and proportioned to the size of the place provided the composition and accompaniment be written in grave and suitable style, and conform in all respects to that proper to the organ.
21. In processions outside the church the Ordinary may give permission for a band, provided no profane pieces be executed. It would be desirable in such cases that the band confine itself to accompanying some spiritual canticle sung in Latin or in the vernacular by the singers and the pious associations which take part in the procession.
VII. The length of the liturgical chant
22. It is not lawful to keep the priest at the altar waiting on account of the chant or the music for a length of time not allowed by the liturgy. According to the ecclesiastical prescriptions the Sanctus of the Mass should be over before the elevation, and therefore the priest must here have regard for the singers. The Gloria and the Credo ought, according to the Gregorian tradition, to be relatively short.
23. In general it must be considered a very grave abuse when the liturgy in ecclesiastical functions is made to appear secondary to and in a manner at the service of the music, for the music is merely a part of the liturgy and its humble handmaid.
VIII. Principal means
24. For the exact execution of what has been herein laid down, the Bishops, if they have not already done so, are to institute in their dioceses a special Commission composed of persons really competent in sacred music, and to this Commission let them entrust in the manner they find most suitable the task of watching over the music executed in their churches. Nor are they to see merely that the music is good in itself, but also that it is adapted to the powers of the singers and be always well executed.
25. In seminaries of clerics and in ecclesiastical institutions let the above-mentioned traditional Gregorian Chant be cultivated by all with diligence and love, according to the Tridentine prescriptions, and let the superiors be liberal of encouragement and praise toward their young subjects. In like manner let a Schola Cantorum be established, whenever possible, among the clerics for the execution of sacred polyphony and of good liturgical music.
26. In the ordinary lessons of Liturgy, Morals, and Canon Law given to the students of theology, let care be taken to touch on those points which regard more directly the principles and laws of sacred music, and let an attempt be made to complete the doctrine with some particular instruction in the aesthetic side of sacred art, so that the clerics may not leave the seminary ignorant of all those subjects so necessary to a full ecclesiastical education.
27. Let care be taken to restore, at least in the principal churches, the ancient Scholae Cantorum, as has been done with excellent fruit in a great many places. It is not difficult for a zealous clergy to institute such Scholae even in smaller churches and country parishesnay, in these last the pastors will find a very easy means of gathering around them both children and adults, to their own profit and the edification of the people.
28. Let efforts be made to support and promote, in the best way possible, the higher schools of sacred music where these already exist, and to help in founding them where they do not. It is of the utmost importance that the Church herself provide for the instruction of her choirmasters, organists, and singers, according to the true principles of sacred art.
IX. Conclusion
29. Finally, it is recommended to choirmasters, singers, members of the clergy, superiors of seminaries, ecclesiastical institutions, and religious communities, parish priests and rectors of churches, canons of collegiate churches and cathedrals, and, above all, to the diocesan ordinaries to favor with all zeal these prudent reforms, long desired and demanded with united voice by all; so that the authority of the Church, which herself has repeatedly proposed them, and now inculcates them, may not fall into contempt.
Given from Our Apostolic Palace at the Vatican, on the day of the Virgin and martyr, Saint Cecilia, November 22, 1903, in the first year of Our Pontificate.
Pius X, Pope

Published by Pope Pius XI  20 December 1928
Pius, Servant of the Servants of God, For Everlasting Memory
Since the Church has received from Christ her Founder the office of safeguarding the sanctity of divine worship, it is certainly incumbent upon her, while leaving intact the substance of the Sacrifice and the sacraments, to prescribe ceremonies, rites, formulae, prayers and chant for the proper regulation of that august public ministry, whose special name is “Liturgy”, as being the eminently sacred action.
For the Liturgy is indeed a sacred thing, since by it we are raised to God and united to Him, thereby professing our faith and our deep obligation to Him for the benefits we have received and the help of which we stand in constant need. There is thus a close connection between dogma and the sacred Liturgy, and between Christian worship and the sanctification of the faithful. Hence Pope Celestine I saw the standard of faith expressed in the sacred formulae of the Liturgy. “The rule of our faith”, he says, “is indicated by the law of our worship. When those who are set over the Christian people fulfill the function committed to them, they plead the cause of the human race in the sight of God’s clemency, and pray and supplicate in conjunction with the whole Church”.
These public prayers, called at first “the work of God” and later “the divine office” or the daily “debt” which man owes to God, used to be offered both day and night in the presence of a great concourse of the faithful. From the earliest times the simple chants which graced the sacred prayers and the Liturgy gave a wonderful impulse to the piety of the people. History tells us how in the ancient basilicas, where bishop, clergy and people alternately sang the divine praises, the liturgical chant played no small part in converting many barbarians to Christianity and civilization. It was in the churches that heretics came to understand more fully the meaning of the communion of saints; thus the Emperor Valens, an Arian, being present at Mass celebrated by Saint Basil, was overcome by an extraordinary seizure and fainted. At Milan, Saint Ambrose was accused by heretics of attracting the crowds by means of liturgical chants. It was due to these that Saint Augustine made up his mind to become a Christian. It was in the churches, finally, where practically the whole city formed a great joint choir, that the workers, builders, artists, sculptors and writers gained from the Liturgy that deep knowledge of theology which is now so apparent in the monuments of the Middle Ages.
No wonder, then, that the Roman Pontiffs have been so solicitous to safeguard and protect the Liturgy. They have used the same care in making laws for the regulation of the Liturgy, in preserving it from adulteration, as they have in giving accurate expression to the dogmas of the faith. This is the reason why the Fathers made both spoken and written commentary upon the Liturgy or “the law of worship”; for this reason the Council of Trent ordained that the Liturgy should be expounded and explained to the faithful.
In our times too, the chief object of Pope Pius X, in the Motu Proprio [Tra le Sollecitudini] which he issued twenty-five years ago, making certain prescriptions concerning Gregorian Chant and sacred music, was to arouse and foster a Christian spirit in the faithful, by wisely excluding all that might ill befit the sacredness and majesty of our churches. The faithful come to church in order to derive piety from its chief source, by taking an active part in the venerated mysteries and the public solemn prayers of the Church. It is of the utmost importance, therefore, that anything that is used to adorn the Liturgy should be controlled by the Church, so that the arts may take their proper place as most noble ministers in sacred worship. Far from resulting in a loss to art, such an arrangement will certainly make for the greater splendor and dignity of the arts that are used in the Church. This has been especially true of sacred music. Wherever the regulations on this subject have been carefully observed, a new life has been given to this delightful art, and the spirit of religion has prospered; the faithful have gained a deeper understanding of the sacred Liturgy, and have taken part with greater zest in the ceremonies of the Mass, in the singing of the psalms and the public prayers. Of this We Ourselves had happy experience when, in the first year of Our Pontificate, We celebrated solemn High Mass in the Vatican Basilica to the noble accompaniment of a choir of clerics of all nationalities, singing in Gregorian Chant.
It is, however, to be deplored that these most wise laws in some places have not been fully observed, and therefore their intended results not obtained. We know that some have declared these laws, though so solemnly promulgated, were not binding upon their obedience. Others obeyed them at first, but have since come gradually to give countenance to a type of music which should be altogether banned from our churches. In some cases, especially when the memory of some famous musician was being celebrated, the opportunity has been taken of performing in church certain works which, however excellent, should never have been performed there, since they were entirely out of keeping with the sacredness of the place and of the Liturgy.
In order to urge the clergy and faithful to a more scrupulous observance of these laws and directions which are to be carefully obeyed by the whole Church, We think it opportune to set down here something of the fruits of Our experience during the last twenty-five years. We celebrate not only the memory of the reform of sacred music to which We have referred, but also the centenary of the monk Guido of Arezzo. Nine hundred years ago Guido, at the bidding of the pope, came to Rome and produced his wonderful invention, whereby the ancient and traditional chants might be more easily published, circulated and preserved intact for posterity — to the great benefit and glory of the Church and of art.
It was in the Lateran Palace that Gregory the Great, having made his famous collection of the traditional treasures of plainsong, editing them with additions of his own, had wisely founded his great Schola in order to perpetuate the true interpretation of the liturgical chant. It was in the same building that the monk Guido gave a demonstration of his marvelous invention before the Roman clergy and the Roman Pontiff himself. The pope, by his approbation and high praise of it, was responsible for the gradual spread of the new system throughout the whole world, and thus for the great advantages that accrued therefrom to musical art in general.
We wish, then, to make certain recommendations to the bishops and ordinaries, whose duty it is, since they are the custodians of the Liturgy, to promote ecclesiastical art. We are thus acceding to the requests which, as a result of many musical congresses and especially that recently held at Rome, have been made to Us by not a few bishops and learned masters in the musical art. To these We accord due meed of praise; and We ordain that the following directions, as here-under set forth, with the practical methods indicated, be put into effect.
All those who aspire to the priesthood, whether in seminaries or in religious houses, from their earliest years are to be taught Gregorian Chant and sacred music. At that age they are able more easily to learn to sing, and to modify, if not entirely to overcome, any defects in their voices, which in later years would be quite incurable. Instruction in music and singing must be begun in the elementary, and continued in the higher classes. In this way, those who are about to receive sacred orders, having become gradually experienced in chant, will be able during their theological course quite easily to undertake the higher and “aesthetic” study of plainsong and sacred music, of polyphony and the organ, concerning which the clergy certainly ought to have a thorough knowledge.
In seminaries, and in other houses of study for the formation of the clergy both secular and regular there should be a frequent and almost daily lecture or practice — however short — in Gregorian Chant and sacred music. If this is carried out in the spirit of the Liturgy, the students will find it a relief rather than a burden to their minds, after the study of the more exacting subjects. Thus a more complete education of both branches of the clergy in liturgical music will result in the restoration to its former dignity and splendor of the choral Office, a most important part of divine worship; moreover, the scholae and choirs will be invested again with their ancient glory.
Those who are responsible for, and engaged in divine worship in basilicas and cathedrals, in collegiate and conventual churches of religious, should use all their endeavors to see that the choral Office is carried out duly — i.e. in accordance with the prescriptions of the Church. And this, not only as regards the precept of reciting the divine Office “worthily, attentive and devoutly”, but also as regards the chant. In singing the psalms attention should be paid to the right tone, with its appropriate mediation and termination, and a suitable pause at the asterisk; so that every verse of the psalms and every strophe of the hymns may be sung by all in perfect time together. If this were rightly observed, then all who worthily sing the psalms would signify their unity of intention in worshipping God and, as one side of the choir sings in answer to the other, would seem to emulate the everlasting praise of the Seraphim who cried one to the other “Holy, Holy, Holy”.
Lest anyone in future should invent easy excuses for exempting himself from obedience to the laws of the Church, let every chapter and religious community deal with these matters at meetings held for the purpose; and just as formerly there used to be a “Cantor” or director of the choir, so in future let one be chosen from each chapter or choir of religious, whose duty it will be to see that the rules of the Liturgy and of choral chant are observed and, both individually and generally, to correct the faults of the choir. In this connection it should be observed that, according to the ancient discipline of the Church and the constitutions of chapters still in force, all those at least who are bound to office in choir, are obliged to be familiar with Gregorian Chant. And the Gregorian Chant which is to be used in every church of whatever order, is the text which, revised according to the ancient manuscripts, has been authentically published by the Church from the Vatican Press.
We wish here to recommend, to those whom it may concern, the formation of choirs. These in the course of time came to replace the ancient scholae and were established in the basilicas and greater churches especially for the singing of polyphonic music. Sacred polyphony, We may here remark, is rightly held second only to Gregorian Chant. We are desirous, therefore, that such choirs, as they flourished from the fourteenth to the sixteenth century, should now also be created anew and prosper especially in churches where the scale on which the Liturgy is carried out demands a greater number and a more careful selection of singers.
Choir-schools for boys should be established not only for the greater churches and cathedrals, but also for smaller parish churches. The boys should be taught by the choirmaster to sing properly, so that, in accordance with the ancient custom of the Church, they may sing in the choir with the men, especially as in polyphonic music the highest part, the cantus, ought to be sung by boys. Choir-boys, especially in the sixteenth century, have given us masters of polyphony: first and foremost among them, the great Palestrina.
As We have learned that in some places an attempt is being made to reintroduce a type of music which is not entirely in keeping with the performance of the sacred Office, particularly owing to the excessive use made of musical instruments, We hereby declare that singing with orchestra accompaniment is not regarded by the Church as a more perfect form of music or as more suitable for sacred purposes. Voices, rather than instruments, ought to be heard in the church: the voices of the clergy, the choir and the congregation. Nor should it be deemed that the Church, in preferring the human voice to any musical instrument, is obstructing the progress of music; for no instrument, however perfect, however excellent, can surpass the human voice in expressing human thought, especially when it is used by the mind to offer up prayer and praise to Almighty God.
The traditionally appropriate musical instrument of the Church is the organ, which, by reason of its extraordinary grandeur and majesty, has been considered a worthy adjunct to the Liturgy, whether for accompanying the chant or, when the choir is silent, for playing harmonious music at the prescribed times. But here too must be avoided that mixture of the profane with the sacred which, through the fault partly of organ-builders and partly of certain performers who are partial to the singularities of modern music, may result eventually in diverting this magnificent instrument from the purpose for which it is intended. We wish, within the limits prescribed by the Liturgy, to encourage the development of all that concerns the organ; but We cannot but lament the fact that, as in the case of certain types of music which the Church has rightly forbidden in the past, so now attempts are being made to introduce a profane spirit into the Church by modern forms of music; which forms, if they begin to enter in, the Church would likewise be bound to condemn. Let our churches resound with organ-music that gives expression to the majesty of the edifice and breathes the sacredness of the religious rites; in this way will the art both of those who build the organs and of those who play them flourish afresh and render effective service to the sacred liturgy.
In order that the faithful may more actively participate in divine worship, let them be made once more to sing the Gregorian Chant, so far as it belongs to them to take part in it. It is most important that when the faithful assist at the sacred ceremonies, or when pious sodalities take part with the clergy in a procession, they should not be merely detached and silent spectators, but, filled with a deep sense of the beauty of the Liturgy, they should sing alternately with the clergy or the choir, as it is prescribed. If this is done, then it will no longer happen that the people either make no answer at all to the public prayers — whether in the language of the Liturgy or in the vernacular — or at best utter the responses in a low and subdued manner.
Let the clergy, both secular and regular, under the lead of their bishops and ordinaries devote their energies either directly, or through other trained teachers, to instructing the people in the Liturgy and in music, as being matters closely associated with Christian doctrine. This will be best effected by teaching liturgical chant in schools, pious confraternities and similar associations. Religious communities of men and women should devote particular attention to the achievement of this purpose in the various educational institutions committed to their care. Moreover, We are confident that this object will be greatly furthered by those societies which, under the control of ecclesiastical authority, are striving to reform sacred music according to the laws of the Church.
To achieve all that We hope for in this matter numerous trained teachers will be required. And in this connection We accord due praise to all the schools and institutes throughout the Catholic world, which by giving careful instruction in these subjects are forming good and suitable teachers. But We have a special word of commendation for the “Pontifical Higher School of Sacred Music”, founded in Rome in the year 1910. This school, which was greatly encouraged by Pope Benedict XV and was by him endowed with new privileges, is most particularly favored by Us; for We regard it as a precious heritage left to Us by two Sovereign Pontiffs, and We therefore wish to recommend it in a special way to all the Bishops.
We are well aware that the fulfillment of these injunctions will entail great trouble and labor. But do we not all know how many artistic works our forefathers, undaunted by difficulties, have handed down to posterity, imbued as they were with pious zeal and with the spirit of the Liturgy? Nor is this to be wondered at; for anything that is the fruit of the interior life of the Church surpasses even the most perfect works of this world. Let the difficulties of this sacred task, far from deterring, rather stimulate and encourage the bishops of the Church, who, by their universal and unfailing obedience to Our behests, will render to the Sovereign Bishop a service most worthy of their episcopal office.
Dated in Rome, 20 December 1928, in the seventh year of our pontificate.
PIUS PP. XI

Musicae Sacrae
On Sacred Music
Pope Pius XII
Encyclical Promulgated on December 25, 1955To Our Venerable Brethren, the Patriarchs, Primates, Archbishops, Bishops and other Local Ordinaries in Peace and Communion with the Apostolic See: Health and Apostolic Benediction.
1. The subject of sacred music has always been very close to Our heart. Hence it has seemed appropriate to us in this encyclical letter to give an orderly explanation of the topic and also to answer somewhat more completely several questions which have been raised and discussed during the past decades. We are doing so in order that this noble and distinguished art may contribute more every day to greater splendor in the celebration of divine worship and to the more effective nourishment of spiritual life among the faithful.
2. At the same time We have desired to grant what many of you, venerable brethren, have requested in our wisdom and also what has been asked by outstanding masters of this liberal art and distinguished students of sacred music at meetings devoted to the subject. The experience of pastoral life and the advances being made in the study of this art have persuaded Us that this step is timely.
3. We hope, therefore, that what Saint Pius X rightly decreed in the document which he accurately called the “legal code of sacred music[1] may be confirmed and inculcated anew, shown in a new light and strengthened by new proofs. We hope that the noble art of sacred music-adapted to contemporary conditions and in some way enriched-may ever more perfectly accomplish its mission.
4. Music is among the many and great gifts of nature with which God, in Whom is the harmony of the most perfect concord and the most perfect order, has enriched men, whom He has created in His image and likeness.[2] Together with the other liberal arts, music contributes to spiritual joy and the delight of the soul.
5. On this subject Saint Augustine has accurately written: “Music, that is the science or the sense of proper modulation, is likewise given by God’s generosity to mortals having rational souls in order to lead them to higher things.”[3]
6. No one, therefore, will be astonished that always and everywhere, even among pagan peoples, sacred song and the art of music have been used to ornament and decorate religious ceremonies. This is proved by many documents, both ancient and new. No one will be astonished that these arts have been used especially for the worship of the true and sovereign God from the earliest times. Miraculously preserved unharmed from the Red Sea by God’s power, the people of God sang a song of victory to the Lord, and Miriam, the sister of Moses, their leader, endowed with prophetic inspiration, sang with the people while playing a tambourine.[4]
7. Later, when the ark of God was taken from the house of Abinadab to the city of David, the king himself and “all Israel played before the Lord on all manner of instruments made of wood, on harps and lutes and timbrels and cornets and cymbals.”[5] King David himself established the order of the music and singing used for sacred worship.[6] This order was restored after the people’s return from exile and was observed faithfully until the Divine Redeemer’s coming.
8. Saint Paul showed us clearly that sacred chant was used and held in honor from the very beginning in the Church founded by the Divine Redeemer when he wrote to the Ephesians: “Be filled with the Spirit, speaking to one another in psalms and hymns and spiritual songs.”[7] He indicates that this custom of singing hymns was in force in the assemblies of Christians when he says: “When you come together each of you has a hymn.”[8]
9. Pliny testifies that the same thing held true after apostolic times. He writes that apostates from the Faith said that “this was their greatest fault or error, that they were accustomed to gather before dawn on a certain day and sing a hymn to Christ as if He were God.”[9] These words of the Roman proconsul in Bithynia show very clearly that the sound of church singing was not completely silenced even in times of persecution.
10. Tertullian confirms this when he says that in the assemblies of the Christians “the Scriptures are read, the psalms are sung, sermons are preached.”[10]
11. There are many statements of the fathers and ecclesiastical writers testifying that after freedom and peace had been restored to the Church the psalms and hymns of liturgical worship were in almost daily use. Moreover, new forms of sacred chant were gradually created and new types of songs were invented. These were developed more and more by the choir schools attached to cathedrals and other important churches, especially by the School of Singers in Rome.
12. According to tradition, Our predecessor of happy memory, Saint Gregory the Great, carefully collected and wisely arranged all that had been handed down by the elders and protected the purity and integrity of sacred chant with fitting laws and regulations.
13. From Rome, the Roman mode of singing gradually spread to other parts of the West. Not only was it enriched by new forms and modes, but a new kind of sacred singing, the religious song, frequently sung in the vernacular, was also brought into use.
14. The choral chant began to be called “Gregorian” after Saint Gregory, the man who revived it. It attained new beauty in almost all parts of Christian Europe after the 8th or 9th century because of its accompaniment by a new musical instrument called the “organ.” Little by little, beginning in the 9th century, polyphonic singing was added to this choral chant. The study and use of polyphonic singing were developed more and more during the centuries that followed and were raised to a marvelous perfection under the guidance of magnificent composers during the 15th and 16th centuries.
15. Since the Church always held this polyphonic chant in the highest esteem, it willingly admitted this type of music even in the Roman basilicas and in pontifical ceremonies in order to increase the glory of the sacred rites. Its power and splendor were increased when the sounds of the organ and other musical instruments were joined with the voices of the singers.
16. Thus, with the favor and under the auspices of the Church the study of sacred music has gone a long way over the course of the centuries. In this journey, although sometimes slowly and laboriously, it has gradually progressed from the simple and ingenuous Gregorian modes to great and magnificent works of art. To these works not only the human voice, but also the organ and other musical instruments, add dignity, majesty and a prodigious richness.
17. The progress of this musical art clearly shows how sincerely the Church has desired to render divine worship ever more splendid and more pleasing to the Christian people. It likewise shows why the Church must insist that this art remain within its proper limits and must prevent anything profane and foreign to divine worship from entering into sacred music along with genuine progress, and perverting it.
18. The Sovereign Pontiffs have always diligently fulfilled their obligation to be vigilant in this matter. The Council of Trent also forbids “those musical works in which something lascivious or impure is mixed with organ music or singing.”[11] In addition, not to mention numerous other Sovereign Pontiffs, Our predecessor Benedict XIV of happy memory in an encyclical letter dated February 19, 1749, which prepared for a Holy Year and was outstanding for its great learning and abundance of proofs, particularly urged Bishops to firmly forbid the illicit and immoderate elements which had arrogantly been inserted into sacred music.[12]
19. Our predecessors Leo XII, Pius VII, Gregory XVI, Pius IX, and Leo XIII [13] followed the same line.
20. Nevertheless it can rightly be said that Our predecessor of immortal memory, Saint Pius X, made as it were the highest contribution to the reform and renewal of sacred music when he restated the principles and standards handed down from the elders and wisely brought them together as the conditions of modern times demanded.[14] Finally, like Our immediate predecessor of happy memory, Pius XI, in his Apostolic Constitution Divini cultus sanctitatem (The Holiness of Divine Worship), issued December 20, 1929,[15] We ourself in the encyclical Mediator Dei (On the Sacred Liturgy), issued November 20, 1947,[16] have enriched and confirmed the orders of the older Pontiffs.
21. Certainly no one will be astonished that the Church is so vigilant and careful about sacred music. It is not a case of drawing up laws of aesthetics or technical rules that apply to the subject of music. It is the intention of the Church, however, to protect sacred music against anything that might lessen its dignity, since it is called upon to take part in something as important as divine worship.
22. On this score sacred music obeys laws and rules which are no different from those prescribed for all religious art and, indeed, for art in general. Now we are aware of the fact that during recent years some artists, gravely offending against Christian piety, have dared to bring into churches works devoid of any religious inspiration and completely at variance with the right rules of art. They try to justify this deplorable conduct by plausible — looking arguments which they claim are based on the nature and character of art itself. They go on to say that artistic inspiration is free and that it is wrong to impose upon it laws and standards extraneous to art, whether they are religious or moral, since such rules seriously hurt the dignity of art and place bonds and shackles on the activity of an inspired artist.
23. Arguments of this kind raise a question which is certainly difficult and serious, and which affects all art and every artist. It is a question which is not to be answered by an appeal to the principles of art or of aesthetics, but which must be decided in terms of the supreme principle of the final end, which is the inviolate and sacred rule for every man and every human act.
24. The ordination and direction of man to his ultimate end — which is God — by absolute and necessary law based on the nature and the infinite perfection of God Himself is so solid that not even God could exempt anyone from it. This eternal and unchangeable law commands that man himself and all his actions should manifest and imitate, so far as possible, God’s infinite perfection for the praise and glory of the Creator. Since man is born to attain this supreme end, he ought to conform himself and through his actions direct all powers of his body and his soul, rightly ordered among themselves and duly subjected to the end they are meant to attain, to the divine Model. Therefore even art and works of art must be judged in the light of their conformity and concord with man’s last end.
25. Art certainly must be listed among the noblest manifestations of human genius. Its purpose is to express in human works the infinite divine beauty of which it is, as it were, the reflection. Hence that outworn dictum “art for art’s sake” entirely neglects the end for which every creature is made. Some people wrongly assert that art should be exempted entirely from every rule which does not spring from art itself. Thus this dictum either has no worth at all or is gravely offensive to God Himself, the Creator and Ultimate End.
26. Since the freedom of the artist is not a blind instinct to act in accordance with his own whim or some desire for novelty, it is in no way restricted or destroyed, but actually ennobled and perfected, when it is made subject to the divine law.
27. Since this is true of works of art in general, it obviously applies also to religious and sacred art. Actually religious art is even more closely bound to God and the promotion of His praise and glory, because its only purpose is to give the faithful the greatest aid in turning their minds piously to God through the works it directs to their senses of sight and hearing. Consequently the artist who does not profess the truths of the faith or who strays far from God in his attitude or conduct should never turn his hand to religious art. He lacks, as it were, that inward eye with which he might see what God’s majesty and His worship demand. Nor can he hope that his works, devoid of religion as they are, will ever really breathe the piety and faith that befit God’s temple and His holiness, even though they may show him to be an expert artist who is endowed with visible talent. Thus he cannot hope that his works will be worthy of admission into the sacred buildings of the Church, the guardian and arbiter of religious life.
28. But the artist who is firm in his faith and leads a life worthy of a Christian, who is motivated by the love of God and reverently uses the powers the Creator has given him, expresses and manifests the truths he holds and the piety he possesses so skillfully, beautifully and pleasingly in colors and lines or sounds and harmonies that this sacred labor of art is an act of worship and religion for him. It also effectively arouses and inspires people to profess the faith and cultivate piety.
29. The Church has always honored and always will honor this kind of artist. It opens wide the doors of its temples to them because what these people contribute through their art and industry is a welcome and important help to the Church in carrying out its apostolic ministry more effectively.
30. These laws and standards for religious art apply in a stricter and holier way to sacred music because sacred music enters more intimately into divine worship than many other liberal arts, such as architecture, painting and sculpture. These last serve to prepare a worthy setting for the sacred ceremonies. Sacred music, however, has an important place in the actual performance of the sacred ceremonies and rites themselves. Hence the Church must take the greatest care to prevent whatever might be unbecoming to sacred worship or anything that might distract the faithful in attendance from lifting their minds up to God from entering into sacred music, which is the servant, as it were, of the sacred liturgy.
31. The dignity and lofty purpose of sacred music consist in the fact that its lovely melodies and splendor beautify and embellish the voices of the priest who offers Mass and of the Christian people who praise the Sovereign God. Its special power and excellence should lift up to God the minds of the faithful who are present. It should make the liturgical prayers of the Christian community more alive and fervent so that everyone can praise and beseech the Triune God more powerfully, more intently and more effectively.
32. The power of sacred music increases the honor given to God by the Church in union with Christ, its Head. Sacred music likewise helps to increase the fruits which the faithful, moved by the sacred harmonies, derive from the holy liturgy. These fruits, as daily experience and many ancient and modern literary sources show, manifest themselves in a life and conduct worthy of a Christian.
33. Saint Augustine, speaking of chants characterized by “beautiful voice and most apt melody,” says: “I feel that our souls are moved to the ardor of piety by the sacred words more piously and powerfully when these words are sung than when they are not sung, and that all the affections of our soul in their variety have modes of their own in song and chant by which they are stirred up by an indescribable and secret sympathy.”[17]
34. It is easy to infer from what has just been said that the dignity and force of sacred music are greater the closer sacred music itself approaches to the supreme act of Christian worship, the Eucharistic sacrifice of the altar. There can be nothing more exalted or sublime than its function of accompanying with beautiful sound the voice of the priest offering up the Divine Victim, answering him joyfully with the people who are present and enhancing the whole liturgical ceremony with its noble art.
35. To this highest function of sacred music We must add another which closely resembles it, that is its function of accompanying and beautifying other liturgical ceremonies, particularly the recitation of the Divine Office in choir. Thus the highest honor and praise must be given to liturgical music.
36. We must also hold in honor that music which is not primarily a part of the sacred liturgy, but which by its power and purpose greatly aids religion. This music is therefore rightly called religious music. The Church has possessed such music from the beginning and it has developed happily under the Church’s auspices. As experience shows, it can exercise great and salutary force and power on the souls of the faithful, both when it is used in churches during non-liturgical services and ceremonies, or when it is used outside churches at various solemnities and celebrations.
37. The tunes of these hymns, which are often sung in the language of the people, are memorized with almost no effort or labor. The mind grasps the words and the music. They are frequently repeated and completely understood. Hence even boys and girls, learning these sacred hymns at a tender age, are greatly helped by them to know, appreciate and memorize the truths of the faith. Therefore they also serve as a sort of catechism. These religious hymns bring pure and chaste joy to young people and adults during times of recreation. They give a kind of religious grandeur to their more solemn assemblies and gatherings. They bring pious joy, sweet consolation and spiritual progress to Christian families themselves. Hence these popular religious hymns are of great help to the Catholic apostolate and should be carefully cultivated and promoted.
38. Therefore when We praised the manifold power and the apostolic effectiveness of sacred music, We spoke of something that can be a source of great joy and solace to all who have in any way dedicated themselves to its study and practice. All who use the art they possess to compose such musical compositions, to teach them or to perform them by singing or using musical instruments, undoubtedly exercise in many ways a true and genuine apostolate. They will receive from Christ the Lord the generous rewards and honors of apostles for the work they have done so faithfully.
39. Consequently they should hold their work in high esteem, not only as artists and teachers of art, but also as ministers of Christ the Lord and as His helpers in the work of the apostolate. They should likewise show in their conduct and their lives the dignity of their calling.
40. Since, as We have just shown, the dignity and effectiveness of sacred music and religious chant are so great, it is very necessary that all of their parts should be diligently and carefully arranged to produce their salutary results in a fitting manner.
41. First of all the chants and sacred music which are immediately joined with the Church’s liturgical worship should be conducive to the lofty end for which they are intended. This music — as our predecessor Pius X has already wisely warned us — “must possess proper liturgical qualities, primarily holiness and goodness of form; from which its other note, universality, is derived.”[18]
42. It must be holy. It must not allow within itself anything that savors of the profane nor allow any such thing to slip into the melodies in which it is expressed. The Gregorian chant which has been used in the Church over the course of so many centuries, and which may be called, as it were, its patrimony, is gloriously outstanding for this holiness.
43. This chant, because of the close adaptation of the melody to the sacred text, is not only most intimately conformed to the words, but also in a way interprets their force and efficacy and brings delight to the minds of the hearers. It does this by the use of musical modes that are simple and plain, but which are still composed with such sublime and holy art that they move everyone to sincere admiration and constitute an almost inexhaustible source from which musicians and composers draw new melodies.
44. It is the duty of all those to whom Christ the Lord has entrusted the task of guarding and dispensing the Church’s riches to preserve this precious treasure of Gregorian chant diligently and to impart it generously to the Christian people. Hence what Our predecessors, Saint Pius X, who is rightly called the renewer of Gregorian chant,[19] and Pius XI[20] have wisely ordained and taught, We also, in view of the outstanding qualities which genuine Gregorian chant possesses, will and prescribe that this be done. In the performance of the sacred liturgical rites this same Gregorian chant should be most widely used and great care should be taken that it should be performed properly, worthily and reverently. And if, because of recently instituted feast days, new Gregorian melodies must be composed, this should be done by true masters of the art. It should be done in such a way that these new compositions obey the laws proper to genuine Gregorian chant and are in worthy harmony with the older melodies in their virtue and purity.
45. If these prescriptions are really observed in their entirety, the requirements of the other property of sacred music — that property by virtue of which it should be an example of true art — will be duly satisfied. And if in Catholic churches throughout the entire world Gregorian chant sounds forth without corruption or diminution, the chant itself, like the sacred Roman liturgy, will have a characteristic of universality, so that the faithful, wherever they may be, will hear music that is familiar to them and a part of their own home. In this way they may experience, with much spiritual consolation, the wonderful unity of the Church. This is one of the most important reasons why the Church so greatly desires that the Gregorian chant traditionally associated with the Latin words of the sacred liturgy be used.
46. We are not unaware that, for serious reasons, some quite definite exceptions have been conceded by the Apostolic See. We do not want these exceptions extended or propagated more widely, nor do We wish to have them transferred to other places without due permission of the Holy See. Furthermore, even where it is licit to use these exemptions, local Ordinaries and the other pastors should take great care that the faithful from their earliest years should learn at least the easier and more frequently used Gregorian melodies, and should know how to employ them in the sacred liturgical rites, so that in this way also the unity and the universality of the Church may shine forth more powerfully every day.
47. Where, according to old or immemorial custom, some popular hymns are sung in the language of the people after the sacred words of the liturgy have been sung in Latin during the solemn Eucharistic sacrifice, local Ordinaries can allow this to be done “if, in the light of the circumstances of the locality and the people, they believe that (custom) cannot prudently be removed.”[21] The law by which it is forbidden to sing the liturgical words themselves in the language of the people remains in force, according to what has been said.
48. In order that singers and the Christian people may rightly understand the meaning of the liturgical words joined to the musical melodies, it has pleased Us to make Our own the exhortation made by the Fathers of the Council of Trent. “Pastors and all those who have care of souls,” were especially urged that “often, during the celebration of Mass, they or others whom they delegate explain something about what is read in the Mass and, among other things, tell something about the mystery of this most holy sacrifice. This is to be done particularly on Sundays and holy days.”[22]
49. This should be done especially at the time when catechetical instruction is being given to the Christian people. This may be done more easily and readily in this age of ours than was possible in times past, because translations of the liturgical texts into the vernacular tongues and explanations of these texts in books and pamphlets are available. These works, produced in almost every country by learned writers, can effectively help and enlighten the faithful to understand and share in what is said by the sacred ministers in the Latin language.
50. It is quite obvious that what We have said briefly here about Gregorian chant applies mainly to the Latin Roman Rite of the Church. It can also, however, be applied to a certain extent to the liturgical chants of other rites — either to those of the West, such as the Ambrosian, Gallican or Mozarabic, or to the various eastern rites.
51. For as all of these display in their liturgical ceremonies and formulas of prayer the marvelous abundance of the Church, they also, in their various liturgical chants, preserve treasures which must be guarded and defended to prevent not only their complete disappearance, but also any partial loss or distortion.
52. Among the oldest and most outstanding monuments of sacred music the liturgical chants of the different eastern rites hold a highly important place. Some of the melodies of these chants, modified in accordance with the character of the Latin liturgy, had a great influence on the composition of the musical works of the Western Church itself. It is Our hope that the selection of sacred eastern rite hymns — which the Pontifical Institute of Oriental Studies, with the help of the Pontifical Institute of Sacred Music, is busily working to complete — will achieve good doctrinal and practical results. Thus eastern rite seminarians, well trained in sacred chant, can make a significant contribution to enhancing the beauty of God’s house after they have been ordained priests.
53. It is not Our intention in what We have just said in praise and commendation of the Gregorian chant to exclude sacred polyphonic music from the rites of the Church. If this polyphonic music is endowed with the proper qualities, it can be of great help in increasing the magnificence of divine worship and of moving the faithful to religious dispositions. Everyone certainly knows that many polyphonic compositions, especially those that date from the 16th century, have an artistic purity and richness of melody which render them completely worthy of accompanying and beautifying the Church’s sacred rites.
54. Although over the course of the centuries genuine polyphonic art gradually declined and profane melodies often crept into it, during recent decades the indefatigable labors of experts have brought about a restoration. The works of the old composers have been carefully studied and proposed as models to be imitated and rivaled by modern composers.
55. So it is that in the basilicas, cathedrals and churches of religious communities these magnificent works of the old masters and the polyphonic compositions of more recent musicians can be performed, contributing greatly to the beauty of the sacred rite. Likewise We know that simpler but genuinely artistic polyphonic compositions are often sung even in smaller churches.
56. The Church favors all these enterprises. As Our predecessor of immortal memory, Saint Pius X, says, the Church “unceasingly encourages and favors the progress of the arts, admitting for religious use all the good and the beautiful that the mind of man has discovered over the course of the centuries, but always respecting the liturgical laws.”[23]
57. These laws warn that great prudence and care should be used in this serious matter in order to keep out of churches polyphonic music which, because of its heavy and bombastic style, might obscure the sacred words of the liturgy by a kind of exaggeration, interfere with the conduct of the liturgical service or, finally, lower the skill and competence of the singers to the disadvantage of sacred worship.
58. These norms must be applied to the use of the organ or other musical instruments. Among the musical instruments that have a place in church the organ rightly holds the principal position, since it is especially fitted for the sacred chants and sacred rites. It adds a wonderful splendor and a special magnificence to the ceremonies of the Church. It moves the souls of the faithful by the grandeur and sweetness of its tones. It gives minds an almost heavenly joy and it lifts them up powerfully to God and to higher things.
59. Besides the organ, other instruments can be called upon to give great help in attaining the lofty purpose of sacred music, so long as they play nothing profane nothing clamorous or strident and nothing at variance with the sacred services or the dignity of the place. Among these the violin and other musical instruments that use the bow are outstanding because, when they are played by themselves or with other stringed instruments or with the organ, they express the joyous and sad sentiments of the soul with an indescribable power. Moreover, in the encyclical Mediator Dei, We Ourselves gave detailed and clear regulations concerning the musical modes that are to be admitted into the worship of the Catholic religion.
60. “For, if they are not profane or unbecoming to the sacredness of the place and function and do not spring from a desire to achieve extraordinary and unusual effects, then our churches must admit them, since they can contribute in no small way to the splendor of the sacred ceremonies, can lift the mind to higher things, and can foster true devotion of the soul.”[24]
61. It should hardly be necessary to add the warning that, when the means and talent available are unequal to the task, it is better to forego such attempts than to do something which would be unworthy of divine worship and sacred gatherings.
62. As We have said before, besides those things that are intimately associated with the Church’s sacred liturgy, there are also popular religious hymns which derive their origin from the liturgical chant itself. Most of these are written in the language of the people. Since these are closely related to the mentality and temperament of individual national groups, they differ considerably among themselves according to the character of different races and localities.
63. If hymns of this sort are to bring spiritual fruit and advantage to the Christian people, they must be in full conformity with the doctrine of the Catholic faith. They must also express and explain that doctrine accurately. Likewise they must use plain language and simple melody and must be free from violent and vain excess of words. Despite the fact that they are short and easy, they should manifest a religious dignity and seriousness. When they are fashioned in this way these sacred canticles, born as they are from the most profound depths of the people’s soul, deeply move the emotions and spirit and stir up pious sentiments. When they are sung at religious rites by a great crowd of people singing as with one voice, they are powerful in raising the minds of the faithful to higher things.
64. As we have written above, such hymns cannot be used in Solemn High Masses without the express permission of the Holy See. Nevertheless at Masses that are not sung solemnly these hymns can be a powerful aid in keeping the faithful from attending the Holy Sacrifice like dumb and idle spectators. They can help to make the faithful accompany the sacred services both mentally and vocally and to join their own piety to the prayers of the priest. This happens when these hymns are properly adapted to the individual parts of the Mass, as We rejoice to know is being done in many parts of the Catholic world.
65. In rites that are not completely liturgical religious hymns of this kind — when, as We have said, they are endowed with the right qualities — can be of great help in the salutary work of attracting the Christian people and enlightening them, in imbuing them with sincere piety and filling them with holy joy. They can produce these effects not only within churches, but outside of them also, especially on the occasion of pious processions and pilgrimages to shrines and at the time of national or international congresses. They can be especially useful, as experience has shown, in the work of instructing boys and girls in Catholic truth, in societies for youth and in meetings of pious associations.
66. Hence We can do no less than urge you, venerable brethren, to foster and promote diligently popular religious singing of this kind in the dioceses entrusted to you. There is among you no lack of experts in this field to gather hymns of this sort into one collection, where this has not already been done, so that all of the faithful can learn them more easily, memorize them and sing them correctly.
67. Those in charge of the religious instruction of boys and girls should not neglect the proper use of these effective aids. Those in charge of Catholic youth should make prudent use of them in the highly important work entrusted to them. Thus there will be hope of happily attaining what everyone desires, namely the disappearance of worldly songs which because of the quality of their melodies or the frequently voluptuous and lascivious words that go with them are a danger to Christians, especially the young, and their replacement by songs that give chaste and pure pleasure, that foster and increase faith and piety.
68. May it thus come about that the Christian people begin even on this earth to sing that song of praise it will sing forever in heaven: “To Him who sits upon the throne, and to the Lamb, blessing and honor and glory and dominion forever and ever.”[25]
69. What we have written thus far applies primarily to those nations where the Catholic religion is already firmly established. In mission lands it will not be possible to accomplish all these things until the number of Christians has grown sufficiently, larger church buildings have been erected, the children of Christians properly attend schools established by the Church and, finally, until there is an adequate number of sacred ministers. Still We urgently exhort apostolic workers who are laboring strenuously in these extensive parts of the Lord’s vineyard to pay careful attention to this matter as one of the serious problems of their ministry.
70. Many of the peoples entrusted to the ministry of the missionaries take great delight in music and beautify the ceremonies dedicated to the worship of idols with religious singing. It is not prudent, then, for the heralds of Christ, the true God, to minimize or neglect entirely this effective help in their apostolate. Hence the preachers of the Gospel in pagan lands should sedulously and willingly promote in the course of their apostolic ministry the love for religious song which is cherished by the men entrusted to their care. In this way these people can have, in contrast to their own religious music which is frequently admired even in cultivated countries, sacred Christian hymns in which the truths of the faith, the life of Christ the Lord and the praises of the Blessed Virgin Mary and the Saints can be sung in a language and in melodies familiar to them.
71. Missionaries should likewise be mindful of the fact that, from the beginning, when the Catholic Church sent preachers of the Gospel into lands not yet illumined by the light of faith, it took care to bring into those countries, along with the sacred liturgical rites, musical compositions, among which were the Gregorian melodies. It did this so that the people who were to be converted might be more easily led to accept the truths of the Christian religion by the attractiveness of these melodies.
72. So that the desired effect may be produced by what We have recommended and ordered in this encyclical, following in the footsteps of Our predecessors, you, venerable brethren, must carefully use all the aids offered by the lofty function entrusted to you by Christ the Lord and committed to you by the Church. As experience teaches, these aids are employed to great advantage in many churches throughout the Christian world.
73. First of all see to it that there is a good school of singers in the cathedral itself and, as far as possible, in other major churches of your dioceses. This school should serve as an example to others and influence them to carefully develop and perfect sacred chant.
74. Where it is impossible to have schools of singers or where there are not enough choir boys, it is allowed that “a group of men and women or girls, located in a place outside the sanctuary set apart for the exclusive use of this group, can sing the liturgical texts at Solemn Mass, as long as the men are completely separated from the women and girls and everything unbecoming is avoided. The Ordinary is bound in conscience in this matter.”[26]
75. Great care must be taken that those who are preparing for the reception of sacred orders in your seminaries and in missionary or religious houses of study are properly instructed in the doctrine and use of sacred music and Gregorian chant according to the mind of the Church by teachers who are experts in this field, who esteem the traditional customs and teachings and who are entirely obedient to the precepts and norms of the Holy See.
76. If, among the students in the seminary or religious house of study, anyone shows remarkable facility in or liking for this art, the authorities of the seminary or house of study should not neglect to inform you about it. Then you may avail yourself of the opportunity to cultivate these gifts further and send him either to the Pontifical Institute of Sacred Music in Rome or to some other institution of learning in which this subject is taught, provided that the student manifests the qualities and virtues upon which one can base a hope that he will become an excellent priest.
77. In this matter care must also be taken that local Ordinaries and heads of religious communities have someone whose help they can use in this important area which, weighed down as they are by so many occupations, they cannot easily take care of themselves.
78. It would certainly be best if in diocesan Councils of Christian Art there were someone especially expert in the fields of religious music and chant who could carefully watch over what is being done in the diocese, inform the Ordinary about what has been done and what is going to be done, receive the Ordinary’s commands and see that they are obeyed. If in any diocese there is one of these associations, which have been wisely instituted to foster sacred music and have been greatly praised and commended by the Sovereign Pontiffs, the Ordinary in his prudence may employ this association in the task of fulfilling responsibility.
79. Pious associations of this kind, which have been founded to instruct the people in sacred music or for advanced study in this subject, can contribute greatly by words and example to the advance of sacred music.
80. Help and promote such associations, venerable brethren, so that they may lead an active life, may employ the best and the most effective teachers, and so that, throughout the entire diocese, they may diligently promote the knowledge, love and use of sacred music and religious harmonies, with due observance of the Church’s laws and due obedience to Ourselves.
81. Moved by paternal solicitude, We have dealt with this matter at some length. We are entirely confident that you, venerable brethren, will diligently apply all of your pastoral solicitude to this sacred subject which contributes so much to the more worthy and magnificent conduct of divine worship.
82. It is Our hope that whoever in the Church supervises and directs the work of sacred music under your leadership may be influenced by Our encyclical letter to carry on this glorious apostolate with new ardor and new effort, generously, enthusiastically and strenuously.
83. Hence, We hope that this most noble art, which has been so greatly esteemed throughout the Church’s history and which today has been brought to real heights of holiness and beauty, will be developed and continually perfected and that on its own account it will happily work to bring the children of the Church to give due praise, expressed in worthy melodies and sweet harmonies, to the Triune God with stronger faith, more flourishing hope and more ardent charity.
84. May it produce even outside the walls of churches-in Christian families and gatherings of Christians — what Saint Cyprian beautifully spoke of to Donatus, “Let the sober banquet resound with Psalms. And if your memory by good and your voice pleasant, approach this work according to custom. You give more nourishment to those dearest to you if we hear spiritual things and if religious sweetness delights the ears.”[27]
85. In the meantime, buoyed up by the hope of richer and more joyous fruits which We are confident will come from this exhortation of Ours, as a testimony of Our good will and as an omen of heavenly gifts to each one of you, venerable brethren, to the flock entrusted to your care and to those who observe Our wishes and work to promote sacred music, with abundant charity, We impart the Apostolic Benediction.
86. Given at Saint Peter’s in Rome, December 25, on the feast of the Nativity of Our Lord Jesus Christ, in the year 1955, the 17th of Our Pontificate.