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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

Jeff Ostrowski • Article Archive

A theorist, organist, and conductor, Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He completed studies in Education and Musicology at the graduate level. Having worked as a church musician in Los Angeles for ten years, in 2024 he accepted a position as choirmaster for Saint Mary of the Immaculate Conception in Michigan, where he resides with his wife and children. —Read full biography (with photographs).

Jeff Ostrowski · March 19, 2016

Footage From 1968 • Pope Paul VI Giving Out Palms

The Cardinals don’t need to wear red—they have it on already!

Jeff Ostrowski · March 16, 2016

Sean McDermott’s “Virgo Dei Genitrix”

Do you agree this “live” recording is sung with excellence?

Jeff Ostrowski · March 16, 2016

Printable Passion Booklets (PDF)

These might be helpful to some!

Jeff Ostrowski · March 15, 2016

Brand New • “Saint Paul Hymnal”

Msgr. Andrew R. Wadsworth served on the advisory committee for this hymn book!

Jeff Ostrowski · March 14, 2016

“Liturgy Shaming”

They’re doing the very thing they say they deplore!

Jeff Ostrowski · March 13, 2016

Can You Find The Error Here?

The problem with trying to revise liturgical books too quickly…

Jeff Ostrowski · March 12, 2016

PDF Download • Spanish Cathedral Music (1961)

“On Holy Saturday in 1545, while the pope and several cardinals were present, two of the oldest choir members flew at each other during the blessing of the new oils…”

Jeff Ostrowski · March 12, 2016

Suzanne Toolan • Missing Verse From “I Am The Bread Of Life” Hymn

Is this for real?

Jeff Ostrowski · March 8, 2016

Undoing A “Wreckovation” Is Possible

A positive church transformation!

Jeff Ostrowski · March 7, 2016

PDF Download • “New Westminster Hymnal” (1939)

Can Watershed survive? (Part 4)

Jeff Ostrowski · March 5, 2016

“Ave Maris Stella” • Take II

Have you ever changed your mind with regard to tempo?

Jeff Ostrowski · March 3, 2016

Rehearsal Videos • My Favorite Lenten Hymn

Can Watershed survive? (Part 3)

Jeff Ostrowski · March 2, 2016

PDF Download • “Woodward Hymnal” (1913) … Outrageously Rare!

Can Watershed survive? (Part 2)

Jeff Ostrowski · March 1, 2016

| Part 1 of 3 | • “Kyrie Eleison” (SATB) within the reach of any choir!

Can Watershed survive? (Part 1)

Jeff Ostrowski · February 28, 2016

Musical Resources • 3rd Sunday of Lent (EF)

“…free us from all sins and dangers, as Thou dost grant us to be sharers in this great mystery…”

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Corpus Christi Watershed

President’s Corner

    💲 5.00 💵
    Our tiny 501(c)3 nonprofit organization exists solely by generous readers who donate $5.00 per month. We have no endowment; we have no major donors; we run no advertisements; we have no savings. A donor wrote to us: “I so appreciate all you do and have done, and your generosity is unprecedented. I am honored to be able to make a monthly contribution.” Another monthly donor says: “Thank you for everything CC Watershed does. We are able to add so much solemnity to Holy Mass due to the resources made available here.” Can you spare a few dollars each month to help us survive?
    —Corpus Christi Watershed
    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

Quick Thoughts

    “Reminder” — Month of Febr. (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. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    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

“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

  • “Reminder” — Month of Febr. (2026)
  • Seminary Music Directors Gather in Houston
  • 💲 5.00 💵
  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”

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Corpus Christi Watershed is a 501(c)3 public charity dedicated to exploring and embodying as our calling the relationship of religion, culture, and the arts. This non-profit organization employs the creative media in service of theology, the Church, and Christian culture for the enrichment and enjoyment of the public.