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Corpus Christi Watershed

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 • Missa Philomena (Philippe Verdelot)

Jeff Ostrowski · February 26, 2022

EADERS WILL RECALL that I usually introduce polyphony with multiple sections in a “piecemeal” manner. Several examples can be found at this link—but most people find it more convenient to explore LALEMANT POLYPHONIC. There’s no real “mystery” to piecemeal polyphony; it just means introducing a piece slowly, rather than attempting to teach your choir a 3-section KYRIE ELEYSON or a 3-section AGNUS DEI all at once. Today, I introduce part 2 (“Christe”) of a composition by Verdelot. As time goes on, I will add the other sections.

Going Way Back: This music is from a much earlier period (stile antico) than compositions we usually sing. You can really tell it’s different, too! The long vocal lines are different. The musica ficta is different. The harmonic rhythm and tonality are different. The lengths of the notes are different (especially the “unequal” ending notes). And the text underlay! To be honest, I massively modified the text underlay; it was just too different from what my choirs are used to. I wasn’t brave enough to leave it alone! The further you go back in music history, the more difficult the tessitura—but that is not a problem in this particular example. We usually sing Guerrero, Victoria, Palestrina, and other High Renaissance composers. We usually do not sing composers such as Costanzo Festa, Adrian Willaert, Nicolas Gombert, Josquin des Prez, Johannes Ockeghem, and Pierre de la Rue.

Jeff’s Squeaky Soprano: To save rehearsal time, I created practice videos for my choir members who struggle with reading music. I’m a baritone, so you’ll have to pardon my squeaky Soprano voice:

REHEARSAL VIDEOS for each individual voice and the (free) PDF score await you at #54702.

Most readers won’t click on the individual voice parts, and that makes me sad. When we post a “scandalous” liturgical video, we get 40,000 views. I wish we could get as many views for the rehearsal videos—we must revive authentic sacred music!

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

Filed Under: Articles Tagged With: Philippe Verdelot Composer, Piecemeal Polyphony Last Updated: March 17, 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 Michigan. —(Read full biography).

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Corpus Christi Watershed

President’s Corner

    PDF • “Cantus Mariales” (192 pages)
    Andrea Leal has posted an absolutely pristine scan of CANTUS MARIALES (192 pages) which can be downloaded as a PDF file. To access this treasure, navigate to the frabjous article Andrea posted Monday. The file is being offered completely free of charge. The beginning pages of the book have something not to be missed: viz. a letter from Pope Saint Pius X to Dom Pothier, in which the pope calls Abbat Pothier “a man versed above all others in the science of liturgy, and to whom the cause of Gregorian chant is greatly indebted.”
    —Jeff Ostrowski
    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    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
    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

“The following question is asked by the Most Reverend Lord Bishop of the Diocese of Chur: May this Diocese’s ancient custom be continued of having the Celebrant in Sung Masses (excepting more solemn Masses) intone the Credo and when he is finished reciting it going on immediately to the offertory and finishing it while the credo is being sung by the choir?” (Dubium of Dec 1909)

— 11 December 1909

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