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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 15, 2015

What? Sundays after Pentecost?

Be careful this year.

Jeff Ostrowski · October 14, 2015

When Choirmasters Despair

No matter how superb your music program is…

Jeff Ostrowski · October 11, 2015

Kyrie XI • Gregorian Chant

I’ve wrongly neglected this famous chant.

Jeff Ostrowski · October 10, 2015

The Week In Review

Seven random thoughts…

Jeff Ostrowski · October 10, 2015

Musical Resources • 20th Sunday after Pentecost (Extraordinary Form)

“May these mysteries, we beseech thee, O Lord, bring us from heaven a healing medicine…”

Jeff Ostrowski · October 7, 2015

Sloppy 1953 Schwann

The “white notes” (as Dr. Joseph Lennards called them) are quite sloppy, which really took me by surprise.

Jeff Ostrowski · October 3, 2015

Loading Choir Binders For Sunday (4 October)

The life of a choirmaster is a life of sacrifice…

Jeff Ostrowski · October 3, 2015

Worst Song Ever?

What Church musicians can learn from “Friday” by Rebecca Black.

Jeff Ostrowski · October 1, 2015

Musical Resources • 19th Sunday after Pentecost (Extraordinary Form)

“Almighty and merciful God, in thy goodness put far from us all that may work us harm…”

Jeff Ostrowski · September 28, 2015

PDF Download • Extremely Rare Hymnal (1952)

Published by the Catholic Choirmasters’ Guild of Buffalo, New York.

Jeff Ostrowski · September 26, 2015

Fr. David Friel & Pope Francis

A friend kindly sent me these photos…

Jeff Ostrowski · September 24, 2015

Musical Resources • 18th Sunday after Pentecost (Extraordinary Form)

“In thy tender mercy, guide aright, we beseech thee, O Lord, our hearts…”

Jeff Ostrowski · September 24, 2015

Joan Brudieu • Simple Kyrie (Revised)

When people ask how to begin teaching polyphony, I show them this.

Jeff Ostrowski · September 23, 2015

Interesting Video About The Latin Mass (Massachusetts)

I believe Fr. Robert Fromageot was professor of Gregorian chant at the FSSP seminary.

Jeff Ostrowski · September 22, 2015

A Serious Problem That Needs To Be Addressed

The accusation by this lady really hurt me; but I’m not sure why…

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Corpus Christi Watershed

President’s Corner

    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
    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

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

“If the right is given to African tribes to include their pagan traditions in the liturgy, I think the same should also be given to the rite of a thousand year-old Christian Church, based on a much older Roman tradition.”

— Professor László Dobszay

Recent Posts

  • 2-Voice Arrangement for Lent
  • Pope Paul VI • “Sacrificium Laudis” (15 Aug 1966)
  • “Sanctus VIII” • Organ Accompaniment
  • PDF Download • Sanctus VIII Organ Accompaniment (“Mass of the Angels”)
  • Gorgeous Image of Monks Singing!

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