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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 · February 5, 2025

PDF Download • “Psalm Comparison Chart”

This PDF chart will be of interest to Catholic musicians!

Jeff Ostrowski · February 4, 2025

PDF Download • “Entrance Chant” for the 5th Sunday in Ordinary Time (Year C)

I would argue we must renew our good resolution and stand firm.

Jeff Ostrowski · February 3, 2025

Jesuit Recruitment Video (1950s)

It’s difficult to understand why some modern-day Jesuits have not been reprimanded by their superiors.

Jeff Ostrowski · February 3, 2025

Richard Nixon • “Federal Aid for Parochial Schools”

Colson claims Nixon signed an ‘executive order’ giving federal money to Roman Catholic schools.

Jeff Ostrowski · February 2, 2025

“Music List” • Presentation (2 February)

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

Jeff Ostrowski · February 1, 2025

“Entrance Chant” • Presentation (2 Febr.)

This English adaptation imitates the authentic Gregorian Chant version in a splendid way.

Jeff Ostrowski · February 1, 2025

Can Marian Hymns Be Sung During the Offertory?

My colleague, Corrinne May, has published an article for the “Totus Tuus” apostolate.

Jeff Ostrowski · January 31, 2025

The Mystery Has Been Solved

For more than twenty years, I’ve been searching for…

Jeff Ostrowski · January 31, 2025

PDF Download • Intensely Rare 1898 “Roman Gradual” — (Released for the First Time in History)

I carefully scanned all 642 pages in (color) high resolution.

Jeff Ostrowski · January 31, 2025

2 February • “Communion”

I would say: “Somewhat dark, yet beautiful”

Jeff Ostrowski · January 30, 2025

Thoughts on the “English” Method of Hymn-Printing

Protestants sometimes say: “One must never omit verses of a hymn, because hymns tell a story.”

Jeff Ostrowski · January 29, 2025

8 Reasons • “Why the Sacred Music Symposium Is Unlike Other Conferences”

Consider a few items you’ll learn at this year’s conference…

Jeff Ostrowski · January 29, 2025

Can Polyphony Be Added to the Ordinary Form?

Vatican II went out of its way to be explicit—which is good news for conscientious choirmasters.

Jeff Ostrowski · January 28, 2025

Breaking! • “Cardinal Roche Vs. Bishop Paprocki” (Development on 23 Jan. 2025)

On 23 January 2025, Arthur Cardinal Roche attempted (?) to overrule the Vatican’s “Committee on Canonical Affairs.”

Jeff Ostrowski · January 27, 2025

PDF Download • 3-Voice Arrang. by Helen Drost

You owe it to yourself to listen to this ‘live’ recording.

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Corpus Christi Watershed

President’s Corner

    “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
    Music List • (5th Sund. Ordinary Time)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for this coming Sunday, 8 February 2026, which is the 5th Sunday in Ordinary Time (Year A). If such a thing interests you, feel free to download it as a PDF file. You will probably notice it isn’t as ‘complete’ or ‘spiffy’ as usual, owing to some difficulties which took place this week.
    —Jeff Ostrowski
    PDF • “Communion” (5th Sunday in Ordin.)
    The COMMUNION ANTIPHON for this coming Sunday, 8 February 2026—which is the 5th Sunday in Ordinary Time (Year A)—is truly delightful. You can download the musical score completely free of charge. This text will be familiar to altar boys, because it’s PSALM 42. The Feder Missal makes the following claim about that psalm: “A hymn of a temple musician from Jerusalem: he is an exile in a heathen land, and he longs for the holy city and his ministry in the Temple there. The Church makes his words her own.”
    —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

“The training in singing, to sing in a chorus, is not only an exercise of external listening and of the voice; it is also training for interior listening, listening with the heart, an exercise in training for life and for peace.”

— Pope Benedict XVI

Recent Posts

  • “Sanctus VIII” • Organ Accompaniment
  • PDF Download • Sanctus VIII Organ Accompaniment (“Mass of the Angels”)
  • Gorgeous Image of Monks Singing!
  • “Let the Choir Have a Voice” • Jeff Ostrowski’s Essay on Choral Music in the Catholic Mass
  • Solfege Volleyball: A Children’s Choir Game

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