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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 · November 3, 2012

[Book] Benedict XVI And Beauty In Sacred Music

This book looks like it would make a wonderful Christmas gift!

Jeff Ostrowski · November 2, 2012

The Importance Of Gestures

Physical gestures of reverence and adoration play a huge part in Catholic worship . . .

Jeff Ostrowski · November 2, 2012

Liturgy And Our Television Age

Have you noticed that absolutely everything is shown on television these days?

Jeff Ostrowski · May 7, 2012

Learn A New Word, See It Within 24 Hours (5)

“Good things come to them what wait.” This bizarre phenomenon continues to haunt my life.

Jeff Ostrowski · April 23, 2012

Learn A New Word, See It Within 24 Hours (4)

“What I’m tempted to believe rises to the level of an axiom: We always have time for whatever it is that we want to have time for.”

Jeff Ostrowski · April 5, 2012

The UBI CARITAS chant for Holy Thursday

Download five (5) different free versions of the “Ubi Caritas”

Jeff Ostrowski · March 15, 2012

Hymns: Everything You Ever Wanted To Know (1 of 2)

PART 1: What is a Catholic “hymn” ?

Jeff Ostrowski · March 15, 2012

Hymns: Everything You Ever Wanted To Know (2 of 2)

PART 2: How do hymns fit into the Catholic Mass ?

Jeff Ostrowski · March 13, 2012

Mass Propers: Confusion Resolved

A brief summary: What are the Mass Propers?

Jeff Ostrowski · February 23, 2012

Exsultet Video Recording • Paschal Proclamation • Plus MP3 Recordings!

The Easter Proclamation (“Exsultet”) sung on Holy Saturday Night New Translation (Roman Missal, 3rd Edition)

Jeff Ostrowski · February 3, 2012

A Polyphonic Kyrie During Lent

The Gloria is not said during Lent, so musicians can “get away” with using a slightly longer Kyrie . . .

Jeff Ostrowski · January 13, 2012

Learn A New Word, See It Within 24 Hours (3)

The phenomenon continues.

Jeff Ostrowski · December 12, 2011

Learn A New Word, See It Within 24 Hours

Happens every time . . .

Jeff Ostrowski · May 25, 2011

Modern Sacred Music

QUESTION: Are there any composers alive today writing truly great Sacred music?

Jeff Ostrowski · April 17, 2011

Proof Beyond A Shadow Of A Doubt

Whenever you learn a new word, you will see it within 24 hours.

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Corpus Christi Watershed

President’s Corner

    PDF Download • “Atténde Dómine”
    Although it isn’t nearly as ancient as other hymns in the plainsong repertoire, Atténde Dómine, et miserére, quía peccávimus tíbi (“Look down, O Lord, and have mercy, for we have sinned against Thee”) has become one of the most popular hymns for LENT—perhaps because it was included in the famous Liber Usualis of Solesmes. This musical score (PDF file) has an incredibly accurate version in English, as well as a nice version in Spanish, and also the original Latin. Although I don’t claim to have a great singing voice, this morning I recorded this rehearsal video.
    —Jeff Ostrowski
    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

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

This was first breach in the walls of a fortress, centuries old, stoutly built, strong and robust, but no longer capable of responding to the spiritual needs of the age. [N.B. the “fortress” is a liturgy which nourished countless great saints.]

— Annibale Bugnini (19 March 1966)

Recent Posts

  • Fulton J. Sheen • “24-Hour Catechism”
  • The Weekday Communions of Lent
  • PDF Download • “Atténde Dómine”
  • “Chant Is Not a Penitential Act” • Lenten Reflection by Daniel Marshall
  • (Ash Wednesday) • Medieval Illumination Depicting the Distribution of Ashes

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