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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

PDF Download

Jeff Ostrowski · October 20, 2024

Music List • (29th Sund. Ordinary Time)

Readers have expressed interest in looking over the “music list” I’ve prepared for this coming Sunday.

Jeff Ostrowski · October 19, 2024

PDF Download • “Extremely Rare Biography!” — Raphael Cardinal Merry Del Val (272 Pages)

I’ve been patiently waiting to release this since the summer!

Jeff Ostrowski · October 15, 2024

“This Change Blew My Mind” • Confusion: Is 9 December 2024 a Holy Day of Obligation?

I just got off the phone with a very high ranking official at the USCCB…

Jeff Ostrowski · October 15, 2024

“Entrance Chant” • For Sunday (20-Oct-2024)

This one’s in Mode 3, imitating the authentic Gregorian chant.

Jeff Ostrowski · October 15, 2024

PDF Download • “Entrance Chant in English” (29th Sunday in Ordinary Time)

With a digression on a 1971 film called “Fiddler on the Roof.”

Jeff Ostrowski · October 11, 2024

Music List • (28th Sund. Ordinary Time)

Readers have expressed interest in looking over the “music list” I’ve prepared for this coming Sunday.

Jeff Ostrowski · October 10, 2024

PDF Download • “Entrance Chant in English” for the 28th Sunday in Ordinary Time (Year B)

This coming Sunday—13 October 2024—is the 28th in Ordinary Time.

Jeff Ostrowski · October 9, 2024

“Entrance Chant” • For Sunday (13-Oct-2024)

This one’s in Mode 3, imitating the authentic Gregorian chant.

Jeff Ostrowski · October 5, 2024

“In Feriis Per Annum” • Kýrie Eléison

For years I’d been meaning to harmonize the famous KYRIE SIMPLEX—but I never got the opportunity until today. Feel free to download the PDF score if you wish. It is “Kyrie XVI,” which in the old books bore the title In Feriis Per Annum.

Veronica Brandt · October 4, 2024

PDF Download • “Vexilla Regis” in 3 or 4 parts, alternating chant & polyphony

A lovely and practical piece with fantastic safety features for any time adoring the Cross of Jesus.

Follow the Discussion on Facebook

Jeff Ostrowski · October 2, 2024

English Plainchant Revival • “Is It Real?”

Let Busoni’s statement serve as a reminder to Catholic music directors everywhere.

Jeff Ostrowski · October 1, 2024

“Entrance Chant” • For Sunday (6-Oct-2024)

This one’s in Mode 4, imitating in an admirable way the authentic Gregorian chant.

Jeff Ostrowski · September 30, 2024

You Forgot About This One!

I’d be interested to see the actual citations for this…

Jeff Ostrowski · September 29, 2024

An Anglican “Mess”

If I live to be 100 years old, there’s something I’ll never understand.

Veronica Moreno · September 28, 2024

Communion Antiphon • “For Any Mass?”

Rehearsal videos are included—and they’re pretty fantastic!

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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

“What really matters in life is that we are loved by Christ and that we love Him in return. In comparison to the love of Jesus, everything else is secondary. And, without the love of Jesus, everything is useless.”

— Pope John Paul II (1979)

Recent Posts

  • 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
  • Music List • (1st Sunday of Lent)

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