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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 · April 10, 2019

(captured by iPhone) • Rehearsing for the Symposium

Do me a huge favor…

Jeff Ostrowski · April 9, 2019

Brébeuf Harmony Edition • “Splendid Beyond Words”

Folks, there’s just one word for this: WOW.

Jeff Ostrowski · April 8, 2019

PDF Download • Spectacular “Tenebrae” Booklet

Mr. Albert Bloomfield has done us a breathtaking favor.

Jeff Ostrowski · April 6, 2019

St. Michael the Archangel Prayer…in Gregorian Chant!

From a rare book of Franciscan chants (1902)

Follow the Discussion on Facebook

Jeff Ostrowski · April 4, 2019

PDF Download • Mystery Kyriale (100 Pages)

Nobody knows the author or date of publication.

Jeff Ostrowski · March 19, 2019

A Short Piece We’re Singing For Lent

A few weeks ago, I had the opportunity to sit down with one of the smartest Catholic priests alive.

Jeff Ostrowski · March 14, 2019

“Sarum Rite” • Did it exist? What is it?

“To contrast Ancient Sarum with Modern Roman is absurd.” —Fr. Adrian Fortescue (1912)

Jeff Ostrowski · March 13, 2019

Offensive Music in Germany • Ash Wednesday (2019)

Have you ever seen a liturgical “instrument” like this?

Jeff Ostrowski · March 7, 2019

“The New Mass” • Discussed by Michael Davies, Malachi Martin, Msgr. Champlin, and William F. Buckley

Fascinating debate recorded 22 April 1980.

Jeff Ostrowski · March 4, 2019

“Lacuna” • An Actual One—Not A Fake One

Read these entries—and then tell me your head isn’t spinning!

Jeff Ostrowski · February 28, 2019

PDF • “Additional Versions of the Credo” (1934)

This morning, fascinating versions of the Credo arrived in my inbox—versions I had never seen!

Jeff Ostrowski · February 20, 2019

When You Go To Mass … Be This Guy!

Bringing a falcon to Mass never crossed my mind…

Jeff Ostrowski · February 19, 2019

An Outrageous “Paradox” I Cannot Accept

I’m not someone who believes everything was perfect before Vatican II—but calling the EF “worldly” compared to the OF is just silly.

Jeff Ostrowski · February 14, 2019

Update! • Accompaniments for the Brébeuf Hymnal

Oh, if only…if only you knew what’s going on behind the scenes!

Jeff Ostrowski · February 11, 2019

Breaking! • Father Edwin C. Dwyer Development?

Did Bishop A. Hurley have a change of heart?

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Corpus Christi Watershed

President’s Corner

    Music List • (1st Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I’ve prepared for this coming Sunday—22 February 2026—the 1st Sunday of Lent (Year A). If such a thing interests you, feel free to download it as a PDF file. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the outstanding feasts website alongside the official texts in Latin. I spent an enormous amount of time preparing this ORDER OF MUSIC—because the children’s choir will join us—and some of its components came out great. For example, the COMMUNION ANTIPHON with Fauxbourdon is utterly resplendent, yet still ‘Lenten’.
    —Jeff Ostrowski
    2-Voice Arrangement for Lent
    Those seeking a two-voice arrangement for LENT and PASSIONTIDE should click here and scroll down. It’s based on number 775 in the Brébeuf Hymnal, with an enchanting melody written by Kevin Allen (the legendary American composer of sacred music). That text—“Pendens In Crucis Cornibus”—is often used for the Feast of our Lady of Sorrows. That link is important because, in addition to the musical score, it provides free rehearsal videos for each individual voice: something volunteer choirs appreciate!
    —Jeff Ostrowski
    “Sanctus VIII” • Organ Accompaniment
    A few days ago, I composed this organ harmonization for SANCTUS VIII. This Mass is traditionally called Missa de ángelis or “Mass of the angels.” In French, it is Messe de Anges. You can evaluate my attempt to simultaneously accompany myself on the pipe organ (click here) while singing the melody. My parish is currently singing this setting.
    —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

Palestrina wrote two Masses in honor of the Blessed Virgin—one “a 6” before the Council of Trent, consequently with the tropes, and first published in 1570. In 1599 it was republished in Palestrina “Missarum Liber III” with the tropes removed, and in their place the liturgical words of the “Gloria” reiterated.

— Henry Coates

Recent Posts

  • Music List • (1st Sunday of Lent)
  • Fulton J. Sheen • “24-Hour Catechism”
  • 2-Voice Arrangement for Lent
  • Pope Paul VI • “Sacrificium Laudis” (15 Aug 1966)
  • “Sanctus VIII” • Organ Accompaniment

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