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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

Articles

Jeff Ostrowski · November 8, 2019

PDF Download • A Eucharistic Piece My Choir Loves

Including a “preview” of the forthcoming Brébeuf Hymnal SATB Choral Supplement.

Corpus Christi Watershed · November 7, 2019

(1988) • Cardinal Ratzinger Addresses Chilean Bishops

“The grandeur of the liturgy rests upon…rendering tangible the Totally Other, whom we are not capable of summoning.”

Dr. Lucas Tappan · November 5, 2019

If You Want to Catch All the Youth

The “Schools Singing Programme” currently serves 4,000 children each year, many from the most economically depressed areas in England…

Fr. David Friel · November 2, 2019

Holy Souls in Purgatory • 15th-Century Missal Illumination

Detail from the Missal of Eberhard von Greiffenklau

Dr. Lucas Tappan · October 29, 2019

A Professional Choir in Six (6) Years

Support was key, but once Glenn had the necessary vision and support, the rest was a matter of putting one foot in front of the other.

Jeff Ostrowski · October 28, 2019

What Choirmasters Do.

In case you’re wondering: the photo on the upper right is me—taken on Saturday night.

Fr. David Friel · October 24, 2019

“Mass of the Americas” • Solemn Pontifical High Mass in DC

Archbishop Cordileone will offer Mass November 16, 2019 at the Basilica of the National Shrine of the Immaculate Conception.

Jeff Ostrowski · October 23, 2019

Fascinating! • Tridentine “Permission Slip” (1985)

In this riveting document, Archbishop Weakland forbids one’s child from attending a Low Mass—wicked beyond a doubt!

Jeff Ostrowski · October 21, 2019

New Typesetting! • “Kyriale Supplement” (1934)

Mr. Andrew Hinkley has done something marvelous…again!

Jeff Ostrowski · October 19, 2019

PDF Download • Palestrina Kyrie (Part 2 of 3)

“Dazzlingly luscious” is probably best way to describe this Mass.

Richard J. Clark · October 18, 2019

The Tradition Continues! • Seven Organists Perform

“…every bit of carpeting was removed and replaced with marble and stone…”

Jeff Ostrowski · October 16, 2019

“Hidden” Hymns by Cardinal Newman

Fr. Nicholls points out that Saint Newman was an admirer of Beethoven at a time when Beethoven was still living.

Dr. Lucas Tappan · October 15, 2019

A Professional Choir in Six Months

I often wonder if some of the vitriol directed against the Church’s music is due to its less than stellar presentation.

Jeff Ostrowski · October 10, 2019

Incredible!!! • Ancient Kyriale MSS for Download

Through the centuries, we observe a remarkable stability—in spite of variants, which will always exist.

Jeff Ostrowski · October 7, 2019

PDF Download • SATB “Sanctus” by Orlando de Lassus

We have completed part 1. When part 2 is finished, we’ll release that, as well.

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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

“As often as possible they gathered together the children of the village and sat them down in the cabin. Father Brébeuf would put on a surplice and biretta and chant the Our Father, which Father Daniel had translated into Huron rhymes, and the children would chant it after him. Next, he taught them the sign of the cross, the Hail Mary, the Apostles’ Creed, and the Commandments.”

— Biography of St. Jean de Brébeuf

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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