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Views from the Choir Loft

How Does One Use The Ordo Cantus Missæ?

Jeff Ostrowski · July 29, 2013

597 Gregorian Missal Gregorian Missal by Solesmes INALLY, HOW DOES ONE USE the pages of the Ordo Cantus Missæ? To repeat what has been said in the documents, the Ordo Cantus Missæ normally simply points to the official 1908 Graduale and says “take the chants from this Sunday.” For instance, in the sample page we’re about to examine, you can see that the “15th Sunday in Ordinary time” says, “Take the chants from the 10th Sunday after Pentecost”:

      * *  Example page from the Ordo Cantus Missae

But what about the “B” circled in pink and the “I” and “II” circled in green? What in the world do those mean? Steven Van Roode explains:

This is explained in the Praenotanda, n. 20 (p. 11) of the Ordo Cantus Missae. In the section ‘Proprium tempore’ the chants for each week are listed. Your scan is from this section. These chants are to be sung on Sunday and all weekdays, except for the days indicted by the indented characters at the end of the week’s list: letters A, B and C indicate that there are other chants for the Sunday of Year A, B or C (which are specified on pp. 62-64), and roman numerals indicate that there are other chants for weekdays in Year I or II, with the Arabic numerals indicating the weekday (2 = feria secunda = Monday, etc.); these are specified on pp. 65-74.

So, for the fifteenth week in Ordinary Time (n. 112) we have the chants of the Tenth Sunday after Pentecost from the 1961 Graduale Romanum:
      IN Dum clamarem
      GR Custodi me
      OF Ad te levavi
      AL Te decet hymnus

. . . except for the Communion:
      CO Passer invenit

. . . and ad libitum options:
      IN Ego autem cum iustitia
      CO Qui mandicat

So far, so good. Now we come to the “B” circled in pink. Apparently, there are other chants for Sunday of Year B (specified on p. 63):
      GR Ostende nobis

And there are other chants for Year I (Monday and Thursday) and Year II (Thursday) (specified on p. 70; note the arrangement of the data: left for Year I, right for Year II and centre for Year I ánd II):
      Year I (Monday): GR Anima nostra
      Year I and II (Thursday): AL Venite ad me

All these different chants match the readings of the Sunday or weekday and are duly given in the 1974 Graduale Romanum. I hope this explanation made clear how the OCM indicates alternative chants for Sundays and weekdays.

OK . . . SO WHAT?  What’s the lesson here?  What is my point, precisely?

My point should be obvious. The Ordo Cantus Missæ is incredibly difficult to use. It almost couldn’t be more confusing than it is. It is totally unhelpful.

The good news is that the hard work has been done for us already with the Solesmes 1974 Graduale, the Solesmes Gregorian Missal (2012), the Lalemant Propers, the Simple English Propers (CMAA), and many other collections. Therefore, you don’t have to fool around with the Ordo Cantus Missæ . . . which is probably why very few people own this book!

This article is part of a series:

Part 1   •   Part 2

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

Filed Under: Articles Tagged With: Ordo Cantus Missae Last Updated: October 12, 2022

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About Jeff Ostrowski

Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He resides with his wife and children in Los Angeles.—(Read full biography).

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    Tempo?? • 𝘏𝘰𝘭𝘺 𝘎𝘰𝘥, 𝘞𝘦 𝘗𝘳𝘢𝘪𝘴𝘦 𝘛𝘩𝘺 𝘕𝘢𝘮𝘦
    Once, after Mass, my pastor said he really loved the hymn we did. I said: “Father, that's Holy God, We Praise Thy Name—you never heard it before?” He replied: “But the way you did it was terrific. For once, it didn't sound like a funeral dirge!” Last Sunday, our volunteer choir sang that hymn. I think the tempo was just about right … but what do you think?
    —Jeff Ostrowski
    Don’t You Agree About These?
    If you want to make Jeff Ostrowski really happy, send him an email with effusive praise about the individual voice recordings for hymn #296. [Soprano, Alto, Tenor, Bass] They came out dazzlingly sensational, don't you agree?
    —Jeff Ostrowski
    Choral Vowels? Yes? No?
    Here's a live recording of one of the choral “warm-up” exercises my choir enjoys. It was taken during our rehearsal on 27 January 2023. It’s good to make sure each chord is perfectly in tune and balanced before moving to the next one. That only happens when each singer has the correct vowel. If you like, you can freely download that vocal exercise.
    —Jeff Ostrowski

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Goupil deserves the name of martyr not only because he has been murdered by the enemies of God and His Church while laboring in ardent charity for his neighbor, but most of all because he was killed for being at prayer and notably for making the Sign of the Cross.

— St. Isaac Jogues (after the martyrdom of Saint René Goupil)

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