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Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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Views from the Choir Loft

PDF Download • “Magnificat” + Rehearsal Videos!

Jeff Ostrowski · June 4, 2019

ORE THAN ONE THING can be true at the same time. Certainly I have advocated very simple music for church; and the Brébeuf Hymnal is full of beautiful melodies that fit the bill. I have emphasized that Brébeuf makes it possible for a congregation to get through the entire liturgical year, even if they only know one solid tune. That’s because it provides a solution where common melodies can be shared with different texts. Just last Sunday I was using it with my choirs, and it literally saved my life. (I would stand on my head to make this point!)

At the same time—in conjunction with these simple hymns—I fully endorse “complicated” polyphony. At present, I direct more than fifty singers in two different choirs, and every singer learns polyphony. I, therefore, “put my money where my mouth is” in terms of complex polyphony. (We don’t sing it unless we’re prepared.)

I don’t know a greater piece of polyphony than this Magnificat by Guerrero, which will be sung at this year’s Sacred Music Symposium:

EQUAL VOICES : YouTube   •   Mp3 Labeled

SOPRANO : YouTube   •   Mp3 Labeled

1st ALTO : YouTube   •   Mp3 Labeled

2nd ALTO : YouTube   •   Mp3 Labeled

TENOR : YouTube   •   Mp3 Labeled

BASS : YouTube   •   Mp3 Labeled


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Only a few spots remain as of 4 June 2019.

Apply for Sacred Music Symposium 2019.

HOSE WHO READ this blog already know how difficult the life of a choirmaster is; I don’t need to repeat that. We have challenges that often seem insurmountable: physical challenges, musical challenges, psychological challenges, and so on. On a personal level, I struggle to communicate (what I consider to be) basic concepts to our readers. I talk so much about common melodies and how important they are for a Catholic choir—yet, I don’t think I’m articulating this concept well. I believe there is so much that could be accomplished, if we can all stick together; and part of sticking together is communication. A few days ago, I was thinking about how difficult it must have been to implement the document of Pope Pius X. After all, this was long before the invention of television, internet, xerox copy machines, and so forth. The airplane had just been invented; and it really was such a different time. Archduke Ferdinand of Austria was assassinated by mistake. (The initial attempt failed, hitting people behind him; but when he went to the hospital to see how they were doing, he accidentally ran into the same assassin while sitting in traffic; and that’s how he was assassinated, which began the Great War.) The Great War ended up causing the Second Sino-Japanese War and also World War II—and 150 million people died as a result. Read about what it was like to fight in the trenches: bizarre and horrible! In those days, they wouldn’t give the wounded first aid. Instead, they would place wounded men on a train and transport them to a city which had a hospital, even if that city were far away. During the Great War they began to realize this was insane; so they started to have better medical stations on the actual battlefields. The United States ended up entering the Great War, but can you imagine? Can you imagine loading thousands of USA soldiers on a boat to take them to Europe so they could fight for countries they’d never visited? Again, this was all going on around the time of the Motu Proprio of Pius X. Yet, they had choirs back then, in spite of having virtually no technology at all. I guess if they could do it, we should “soldier on” as well…pardon the pun.

Finally: Why do I love Guerrero’s setting so much? It has to do with the fact that my parish sings Solemn Vespers every Sunday. I’ve fallen in love with Vespers, and this Mode 1 psalm tone is frequently used. What Guerrero does with it—in spite of all the other settings by other composers, such as Lassus (who wrote something like 200 Magnificat settings)—is truly remarkable. The entrance of the Alto at the beginning: Powerful. The way he uses contrasting themes—some ascending, some descending: brilliant! The way he will often have one voice just repeat the same notes while the others are going nuts: clever! The Alto canon at the end: not to be missed! In particular, what Guerrero does with this melody is beyond anything I could imagine; after all, it’s just a psalm tone, right? But it went into Guerrero’s brain and look what comes out! Truly marvelous. We will discuss all these things at Sacred Music Symposium 2019.

My friend Nancho sent me the original part books for this piece. Here’s how it looked in the 16th century (Verse 6, Fecit potentiam in brachio suo):

84328 Guerrero MSS


Do you see how Nancho (wisely) preserves the ligatures in his editions? Look at the section in yellow. That’s a ligature. By this time, it was done mainly through tradition—because different ways to form those notes were also available in the time of Guerrero. Still, it’s a nice reminder not to disaggregate that syllable! And it reminds us this comes directly from a psalm tone.

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

Filed Under: Articles, PDF Download Last Updated: January 1, 2020

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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 Michigan. —(Read full biography).

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President’s Corner

    Dom Pothier • Photo from 1904
    Dom Paul Cagin, in a 1904 publication (L’oeuvre de Solesmes dans la restauration du chant grégorien) made sure to include a beautiful image of Dom Pothier, the legendary abbot of St-Wandrille. Also shown is a very young Dom André Mocquereau. Auguste Pécoul—considered the spiritual “son” of Abbat Prosper Guéranger of Solesmes—wrote as follows on 24 June 1901: “To forestall any confusion, let us remember that there is just one Gregorian notation—that restored, according to the ancient manuscripts, by the eminent Abbot of Saint-Wandrille, Dom Pothier.” ✠
    —Jeff Ostrowski
    PDF • “3-Voice Motet” (Father De Laet)
    I believe 99% of our readers will recognize this hymn tune. Perhaps Father Edgard De Laet should have called it a ‘hymn’ instead of a ‘motet for three voices’—but he’s technically correct, since MOTET is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.” The even verses are for three voices, as you will see if you download the PDF score at #20245. The odd verses may be song a cappella SATB or unison with organ.
    —Jeff Ostrowski
    PDF Download • “Hymn for 2 Voices”
    Readers who click on this video will see that it starts with verses of the “Pange Lingua” hymn by Saint Thomas Aquinas (d. 1274) arranged for two voices. However, there’s a polyphonic refrain (“Tantum Ergo”) for three voices, taken from Kevin Allen’s Motecta Trium Vocum. If your choir is very small, this piece is for you! You can download the PDF score free of charge—and you can also utilize the rehearsal videos for each individual voice—by navigating yourself to #20323.
    —Jeff Ostrowski

Quick Thoughts

    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    “Reminder” — Month of January (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. Signing up couldn’t be easier: simply scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

“I would hope there is a place [at Mass] for the avant-garde in the same way I think there has to be a place—and we have to be careful with this—a place for Jazz and a place for Evangelical and all of that. […] On theological grounds, I do think we need interaction with the culture at the level of high art or at the level of more commercial pop culture.”

— Fr. Anthony Ruff (22 June 2016)

Recent Posts

  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”
  • (January 2026) • “Children Singing Plainsong”

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