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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 · October 11, 2025

Fulton J. Sheen Played The Pipe Organ!

Sheen would occasionally display his skill on the organ to his friends.

Jeff Ostrowski · October 11, 2025

“Music List” • 28th in Ordinary Time (Year C)

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · October 9, 2025

PDF Download • “Offertory” for this Sunday

Anyone know why the Book of Esther was chosen? That same section of Esther was chosen for last Sunday’s Introit.

Jeff Ostrowski · October 8, 2025

Why A “Fugue” Here?

I think you will agree about this.

Jeff Ostrowski · October 7, 2025

“Puzzling Comment” • By A Respected FSSP Priest

Once upon a time, Catholics were supposed to attend Mass within their “parochial boundaries.”

Jeff Ostrowski · October 6, 2025

New Bulletin Article • “12 October 2025”

Those responsible for preparing parish bulletins may wish to…

Jeff Ostrowski · October 6, 2025

“Reminder” — Month of October (2025)

Since a new month has arrived, it’s my pleasure to remind you that…

Jeff Ostrowski · October 4, 2025

“American Catholic Hymnal” (1991)

This one book contains and memorializes every horrible idea from the 1980s.

Jeff Ostrowski · October 4, 2025

Involving Women in the Communion?

Not long ago, I received a weird telephone call from a man appointed “director of music” for a large USA diocese.

Jeff Ostrowski · October 3, 2025

“Music List” • 27th in Ordinary Time (Year C)

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · October 2, 2025

Kids’ Choir Sings Thomas Aquinas

Last Sunday, a children’s choir I’m teaching sang with us for the first time.

Jeff Ostrowski · October 2, 2025

Prex • Particularly Powerful

“O God, who dost mend what is shattered, and what thou hast mended, ever dost preserve…”

Jeff Ostrowski · September 30, 2025

Good News From The Vatican

This concerns you!

Jeff Ostrowski · September 27, 2025

“Music List” • 26th in Ordinary Time (Year C)

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · September 27, 2025

“Reminder” — Month of September (2025)

It’s my pleasure to remind you that…

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Corpus Christi Watershed

President’s Corner

    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
    “Holy Name Hymn” (2-Voice Arrangement)
    When we post a direct URL link, we frequently get thousands of downloads. But when scrolling is required, very few take the time. I mention this because those who click on this URL link and scroll to the bottom can download—completely free of charge—a clever 2-voice arrangement for a famous hymn to the Most Holy Name of Jesus. In a pinch, it can be nicely sung by one male and one female! It will be of interest to those who seek arrangements for two voices.
    —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

“The first tasks of the new pope will be to restore normality, restore doctrinal clarity in faith and morals, restore a proper respect for the law and ensure that the first criterion for the nomination of bishops is acceptance of the apostolic tradition. Theological expertise and learning are an advantage, not a hinderance for all bishops and especially archbishops.”

— Cardinal Pell (2022) about the pope who will succeed Francis

Recent Posts

  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”
  • (January 2026) • “Children Singing Plainsong”
  • “Inquiry” • For Music Directors of Cathedrals and Larger Parish Churches

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