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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 17, 2015

Reflections Upon The Death Of Francis Cardinal George This Morning At 10:45am

Someone told me in advance the cardinal was a trained musician; he certainly was!

Jeff Ostrowski · April 16, 2015

Is This The World’s Greatest Cry Room?

An usher approached me, tapping on my shoulder. This was the last straw.

Jeff Ostrowski · April 14, 2015

Should Church Singers Be Paid?

Practice Videos for KYRIE “Impleta Sunt”—based on a piece by Giovanni Pierluigi da Palestrina.

Jeff Ostrowski · April 13, 2015

Nixon, Watergate, & Singing The Mass Propers

Ehrlichman, Haldeman, Dean, Nixon, and others made tons of money writing and speaking about Watergate.

Jeff Ostrowski · April 13, 2015

Don’t Tell Me What You Can Do: Show Me

Directing a choir is extremely difficult. The obstacles often seem insurmountable.

Jeff Ostrowski · April 13, 2015

Cardinal Dolan Vested In Ferriola?

Can someone who knows about vestments confirm this?

Jeff Ostrowski · April 12, 2015

Musical Resources • Low Sunday (a.k.a. “Divine Mercy Sunday” or “Quasimodo” or “White Sunday”)

The organ is back!

Jeff Ostrowski · April 9, 2015

Easter Vigil Readings With Dancer • St. Patrick Catholic Church (Seattle, Washington)

I was surprised to see composer David Haas comment on facebook in support of this.

Jeff Ostrowski · April 9, 2015

First Look Images! • “Proper Of The Mass” By Fr. Samuel F. Weber

This 1,292 page book is much thinner than I had anticipated.

Jeff Ostrowski · April 8, 2015

Fascinating Videos From 1958 • Mass Sung In English!

A “Dialogue” Low Mass with singing (c. 1958) by choristers of St Mary’s Cathedral, Sydney.

Jeff Ostrowski · April 7, 2015

Photographs • FSSP Holy Triduum in Los Angeles (2015)

Notice how the priest, dressed in cope, is engulfed in darkness at the beginning of the Easter Vigil—except for candles burning.

Jeff Ostrowski · April 7, 2015

It Has Arrived! • “Proper of the Mass” (Ignatius)

You will notice that Fr. Weber’s version sounds quite similar to the authentic Latin chant.

Jeff Ostrowski · April 6, 2015

Can You Love Liturgy Too Much?

Should we assume malice on the part of those who denigrate the Traditional Mass?

Jeff Ostrowski · April 6, 2015

Jaw-Dropping Liturgical Manuscripts (7,055 Pages)

Catholics can now *see with their own eyes* the antiquity of our liturgy.

Jeff Ostrowski · April 4, 2015

Rough PDF • Rubrics & Music, Holy Saturday (1962)

I don’t usually release “rough cut” PDF files, but this one is so valuable…

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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

“In older times we referred to humans as the human race, but according to this foundation we are being classed with the animals on the farm, the cow, the horse, the mule […] According to this foundation, I have no right to be born, for I am the youngest of 16 children, and God bless my mother for every one of them!”

— Archbishop Schrembs (d. 1945) vs. a foundation promoting artificial contraception

Recent Posts

  • Fulton J. Sheen • “24-Hour Catechism”
  • 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”)

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