PAPAL LEGISLATION ON SACRED MUSIC: PRINCIPAL POINTS THIS CENTURY (Excluding Vatican II)

INTER SOLLICITUDINES
Given motu proprio of Pope Pius X on Sacred Music 22 November 1903.

[Sacred Music Integral Part of the Liturgy:] 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.

[Gregorian Chant:] 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...

[Rule of the Chant:] ...it is fully legitimate to lay down the following 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.

[Chant of the People:] 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.

[Polyphony:] 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.

[Of Singers:] ...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....

...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.

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,

[Restoration of Scholae Cantorum:] 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 parishes—nay, 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.

DIVINI CULTUS
Apostolic Constitution promulgated by Pope Pius XI, 20 December 1928.

[The Liturgy:] 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."

[Divine Office:] 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 St. Basil, was overcome by an extraordinary seizure and fainted. At Milan, St. Ambrose was accused by heretics of attracting the crowds by means of liturgical chants. It was due to these that St. 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.

[Public Prayer:] 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.

[Choir Discipline:] 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.

[Choir Schools, Polyphony & Palestrina:] 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.

[The Faithful & the Chant:] 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.

[Labour & Reward:] We are well aware that the fulfillment of these injunctions will entail great trouble and labor. ... anything that is the fruit of the interior life of the Church surpasses even the most perfect works of this world. 

MEDIATOR DEI
Encyclical promulgated by Pope Pius XII on 20 November 1947

[Restore Festal Vespers:] ...it is greatly to be desired that they participate in reciting or chanting vespers sung in their own parish on feast days. We earnestly exhort you, Venerable Brethren, to see that this pious practice is kept up, and that wherever it has ceased you restore it if possible. This, without doubt, will produce salutary results when vespers are conducted in a worthy and fitting manner and with such helps as foster the piety of the faithful.

[Learn the Prayers of Vespers:] All should come to our churches and there be taught the truth of the Catholic faith, sing the praises of God, be enriched with benediction of the blessed sacrament given by the priest and be strengthened with help from heaven against the adversities of this life. Let all try to learn those prayers which are recited at vespers and fill their souls with their meaning. When deeply penetrated by these prayers, they will experience what St. Augustine said about himself: "How much did I weep during hymns and verses, greatly moved at the sweet singing of thy Church. Their sound would penetrate my ears and their truth melt my heart, sentiments of piety would well up, tears would flow and that was good for me."

[Restore Scholae Cantorum:] As regards music, let the clear and guiding norms of the Apostolic See be scrupulously observed. Gregorian chant, which the Roman Church considers her own as handed down from antiquity and kept under her close tutelage, is proposed to the faithful as belonging to them also. In certain parts of the liturgy the Church definitely prescribes it;[171] it makes the celebration of the sacred mysteries not only more dignified and solemn but helps very much to increase the faith and devotion of the congregation. For this reason, Our predecessors of immortal memory, Pius X and Pius XI, decree—and We are happy to confirm with Our authority the norms laid down by them—that in seminaries and religious institutes, Gregorian chant be diligently and zealously promoted, and moreover that the old Scholae Cantorum be restored, at least in the principal churches. This has already been done with happy results in not a few places.

[Restore the Chant to the People:] Besides, "so that the faithful take a more active part in divine worship, let Gregorian chant be restored to popular use in the parts proper to the people. Indeed it is very necessary that the faithful attend the sacred ceremonies not as if they were outsiders or mute onlookers, but let them fully appreciate the beauty of the liturgy and take part in the sacred ceremonies, alternating their voices with the priest and the choir, according to the prescribed norms. If, please God, this is done, it will not happen that the congregation hardly ever or only in a low murmur answer the prayers in Latin or in the vernacular."[173] A congregation that is devoutly present at the sacrifice, in which our Savior together with His children redeemed with His sacred blood sings the nuptial hymn of His immense love, cannot keep silent, for "song befits the lover"[174] and, as the ancient saying has it, "he who sings well prays twice." Thus the Church militant, faithful as well as clergy, joins in the hymns of the Church triumphant and with the choirs of angels, and, all together, sing a wondrous and eternal hymn of praise to the most Holy Trinity in keeping with words of the preface, "with whom our voices, too, thou wouldst bid to be admitted."