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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 · December 18, 2014

Solemn High Christmas Midnight Mass • Hollywood

Oh, please help us spread this exciting news!

Jeff Ostrowski · December 17, 2014

PDF Download: Hymns of the Dominican Missal & Breviary • Fr. Aquinas Byrnes (1943)

Containing literal and poetic translations, author biographies, meter explanations, and much more!

Jeff Ostrowski · December 17, 2014

How Well Did Your Parents Know The Mass?

PDF Download: Order of Mass (Latin & English) printed in THE CROWN HYMNAL of 1911.

Jeff Ostrowski · December 15, 2014

“The Gloves Are Off” — Jonathan Gruber & The Traditional Mass

“The faith of many was quite infantile, I would say.” —Paul Inwood, talking about preconciliar Catholics

Jeff Ostrowski · December 13, 2014

“The Experience After The Council Was So Strong And In Some Cases Violent…” —Cardinal Burke

6 December 2014 interview with Raymond Leo Cardinal Burke by GloriaTV.

Jeff Ostrowski · December 13, 2014

Musical Resources • 3rd Sunday of Advent

Including “Creator Alme Siderum” with English Translation by Rev. Adrian Fortescue.

Jeff Ostrowski · December 11, 2014

What They Didn’t Tell You About Psalm Tone VIII

Even the “Liber Usualis” omits critical information about Tone VIII.

Jeff Ostrowski · December 10, 2014

Review: An English Gradual (Belmont Abbey, 2013)

For myself, I prefer the liturgy entirely in Latin or entirely in the vernacular. Others will disagree.

Jeff Ostrowski · December 9, 2014

Any Hope For Modern Catholic Hymnody? Yes!

Major publishers include Haugen’s verse “not in some heaven, light-years away”—what can be done about it?

Jeff Ostrowski · December 8, 2014

The Polyphonic Piece Your Choir Has Been Desiring!

As an added bonus, the score contains solfege markings!

Jeff Ostrowski · December 6, 2014

Musical Resources • 2nd Sunday of Advent

Including scores, audio files, and organ accompaniments.

Jeff Ostrowski · December 5, 2014

Latin Mass In Los Angeles • THIS SUNDAY!

“I’m not one of those Novus Ordo = bad, Tridentine = good people…” —Carlos de Quesado

Jeff Ostrowski · December 3, 2014

The Actual Authentic Writing Of Palestrina

Colin Mawby, former Master of Music at Westminster Cathedral, travels to Rome in this video, letting you see an original manuscript of Palestrina.

Jeff Ostrowski · December 1, 2014

The Current Missal Specifies When To Face the Altar & When To Face The People

The phrase “ad populum conversus” does appear in the postconciliar books, and no amount of polemical articles can change this fact.

Jeff Ostrowski · November 29, 2014

Tutorial For Priests: Singing The Prayers After The “Asperges Me”

Priests often unknowingly drift into another tone, which is not allowed.

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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

“Both priests and people in this country [viz. ENGLAND] were largely taken by surprise by the recent restoration of the Easter Vigil, by the changes in the laws of fasting for Holy Communion, and the advent of the Evening Mass.”

— Dom Oswald Sumner (1955)

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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