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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 · July 5, 2018

iPhone Clip • “Sight-Reading Hymns”

Can you name this hymn melody?

Jeff Ostrowski · June 24, 2018

(Recorded Live) • “Agnus Dei” at the Symposium

About 450 people attended the Mass on Friday night

Jeff Ostrowski · June 19, 2018

iPhone Clip • From Sacred Music Symposium 2018

This year’s Symposium has begun…with a bang!

Jeff Ostrowski · June 12, 2018

“Come Holy Ghost” • Improvisation

Can you improvise?

Jeff Ostrowski · June 8, 2018

“No, I was taught that in school…”

The famous wit of William F. Buckley Jr. is quite conspicuous in this clip.

Jeff Ostrowski · June 5, 2018

Sanctus & Benedictus • “Ave Maris Stella” (Victoria)

We’ve released rehearsal videos for the Kyrie—today, we release the Sanctus & Benedictus!

Jeff Ostrowski · June 4, 2018

CCW Receives Praise … on Television!

An excellent series on Church music

Jeff Ostrowski · May 31, 2018

Is The Brébeuf Hymnal Too Scrupulous?

Why so much deliberation over every choice? Why so much discussion about a single stanza, or even a single word?

Jeff Ostrowski · May 28, 2018

How Serious Are They About The Accent?

Mode 7 is one of the “tricky” psalm tones.

Jeff Ostrowski · May 28, 2018

Can Plainsong Be Harmonized? • (Rehearsal Video)

I included several nasty “Medicæa” harmonizations from the 19th century…

Jeff Ostrowski · May 22, 2018

Rehearsal videos • Missa “Ave Maris Stella” (Victoria)

The Alto line goes down low a few times—but in those days, men might have sung this.

Jeff Ostrowski · May 16, 2018

“Outer Space Hymn” (1966) • In A Catholic Hymnal

Discussion of horrible things that have (sadly) appeared in Catholic hymnals, such as: “And as we float along through outer space, | Past galaxies aglow in dark’s embrace, | Toward other worlds where brothers may await, | Do care for us now in our weightless state.” (Imprimatur 1966)+

Jeff Ostrowski · May 9, 2018

Los Angeles • Audio Excerpts from Solemn Mass

Posting choral singing captured by a pocket recorder is always risky…

Jeff Ostrowski · May 8, 2018

“Pater Noster” by Monsignor Jules Van Nuffel

A “contemporary” composer who’s inspired me since 1998.

Jeff Ostrowski · May 6, 2018

Saint Vitus Choir Page

You can still come to this page but the technical URL destination is now as follows: https://www.ccwatershed.org/2020/04/08/2022-revised-saint-vitus-choir-page/

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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

“One can still have silence even during the Canon, since one is not obliged to recite the Canon audibly at all times. A quieter, less powerful tone of voice will always permit an opportunity for personal, silent prayer.”

— Joseph Cardinal Frings (25-jan-1968), patron of “Consociatio Internationalis Musicae Sacrae” (papal church music association)

Recent Posts

  • “Chant Is Not a Penitential Act” • Lenten Reflection by Daniel Marshall
  • (Ash Wednesday) • Medieval Illumination Depicting the Distribution of Ashes
  • Music List • (1st Sunday of Lent)
  • Fulton J. Sheen • “24-Hour Catechism”
  • 2-Voice Arrangement for Lent

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