“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.”
searchable PDF of Hayburn
And unfortunately rather widely adopted in trad land too, sad to say.widely adopted in Novus Ordo land
For those wishing to use alternatim practice, I suggest adopting an even older Catholic liturgical attitude (widely adopted in Novus Ordo land):
do whatever the heck you want.
widely adopted in Novus Ordo land
And unfortunately rather widely adopted in trad land too, sad to say.
since no rites really exist anymore that have rubrics dictating alternatim practice
I also wonder if the Roman Curia were conservative, or just too irreligious to make the time for tropes and extra prayers.
4. This new rite alone is to be used unless approval of the practice of saying Mass differently was given at the very time of the institution and confirmation of the church by Apostolic See at least 200 years ago, or unless there has prevailed a custom of a similar kind which has been continuously followed for a period of not less than 200 years, in which most cases We in no wise rescind their above-mentioned prerogative or custom. However, if this Missal, which we have seen fit to publish, be more agreeable to these latter, We grant them permission to celebrate Mass according to its rite, provided they have the consent of their bishop or prelate or of their whole Chapter, everything else to the contrary notwithstanding.
5. All other of the churches referred to above, however, are hereby denied the use of other missals, which are to be discontinued entirely and absolutely; whereas, by this present Constitution, which will be valid henceforth, now, and forever, We order and enjoin that nothing must be added to Our recently published Missal, nothing omitted from it, nor anything whatsoever be changed within it under the penalty of Our displeasure.
6. We specifically command each and every patriarch, administrator, and all other persons or whatever ecclesiastical dignity they may be, be they even cardinals of the Holy Roman Church, or possessed of any other rank or pre-eminence, and We order them in virtue of holy obedience to chant or to read the Mass according to the rite and manner and norm herewith laid down by Us and, hereafter, to discontinue and completely discard all other rubrics and rites of other missals, however ancient, which they have customarily followed; and they must not in celebrating Mass presume to introduce any ceremonies or recite any prayers other than those contained in this Missal.
The performance of purely instrumental pieces on the organ during liturgical celebrations today is limited. In the past the organ took the place of the active participation of the faithful, and reduced the people to the role of "silent and inert spectators" of the celebration (1987 Vatican document on Concerts in Churches)
According to the present legislation organ music is allowed on all joyful occasions, both for purely instrumental pieces (voluntaries) and as accompaniment. The organ alone may even take the place of the voices in alternate verses at Mass or in the Office, provided the text so treated be recited by someone in an audible voice while the organ is played. Only the Credo is excepted from this treatment, and in any case the first verse of each chant and all the verses at which any liturgical action takes place — such as the "Te ergo quæsumus", the "Tantum ergo", the "Gloria Patri" — should be sung. (Catholic Encyclopedia, 1911)
The Wikipedia claim that Tra le sollecitudini banned organ alternatim is erroneous. They also confuse the alternatim French organ Mass, a High Mass, with the Low Mass where the organ plays continuously throughout, which is something quite different. Unfortunately I have come across similar claims in peer-reviewed sources too.
Is the organ capable of proclaiming a sacred text? O’Connor demonstrates how that very principle has been admitted by ecclesiastical authorities in a negative way: secular melodies cannot be played as instrumental music in church as long as the popular associations remain. If an organist were to play a totally inappropriate popular song at Mass, hardly anyone would doubt that the organ had indeed proclaimed a secular text. Therefore the organ is also capable of a proclaiming a sacred text.
This is not how organ alternatim works. Other than the hymns properly so called, the versets are in the same mode/tone as the chant but typically don't quote its melody. I occasionally encounter comments about "the organ playing the chant" or something to that effect from people who aren't familiar with the repertory in question and think it's simply a matter of the organist playing harmonized chant, which is not at all the case. Here are some French classical Deo gratias examples, in no particular order:the organ echoes the melody just sung. If the organist also intones the Ite for the priest (which at our parish is always done), it becomes a nice little sandwich. Organ plays melody, priest sings Ite Missa est to same melody, organ repeats melody (emphasis mine)
Keep in mind that with and for the traditional Mass, the celebrant is speaking (albeit perhaps softly) all the words of the Mass.
Many of the pieces in question have a double title indicating the part of the Mass or Office and the registration, presumably from the composers themselves rather than an editor or publisher. They are liturgical works, not concert works.it might be helpful to know how Renaissance and baroque artists spoke about the role of the organ alternatim in the liturgy
Other than for a Missa Privata without other sacred ministers or a congregation, a 'tradition' newly invented in 1570.Keep in mind that with and for the traditional Mass, the celebrant is speaking (albeit perhaps softly) all the words of the Mass.
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