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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

Richard J. Clark · December 9, 2024

Announcement of Easter & the Moveable Feasts • El Anuncio de la Pascua y Fiestas Movibles • 2025

Epiphany Proclamation scores and practice videos in English and Spanish

Jeff Ostrowski · December 6, 2024

PDF Download • “Musical Outline” for the Feast of Our Lady’s Immaculate Conception

Rachmaninoff said: “Nine hours? That’s nothing. For a period of my life, I used to practice 17 hours a day.”

Jeff Ostrowski · December 4, 2024

“A Peculiar Discrepancy” • Immac. Concep. (8 Dec.)

Who can explain this?

Jeff Ostrowski · December 3, 2024

PDF Download • Pristine Scan: Father Mathias’ 1905 Kyriale Organ Accompaniment (186 pages)

Father Mathias served as organist for Strasburg Cathedral, where he founded the “Saint Leo Institute for Church Music” in 1913.

Jeff Ostrowski · December 2, 2024

“Promptly, Firmly, & Persistently Repressed.”

The book is called: “Cantica Sacra: Hymns for the children of the Catholic Church.”

Adam Raha · November 28, 2024

Saint John of the Cross • Arrested & Imprisoned By His Own Carmelite Brothers

Many years ago, I was very calmly trying to de-escalate a disagreement I was having with someone close to me…

Jeff Ostrowski · November 26, 2024

PDF Download • “Entrance Chant” for the Feast of the Immaculate Conception (8 December)

What is he talking about? Where can I go to hear these “aesthetically superior” interpretations? Where can they be found?

Corpus Christi Watershed · November 25, 2024

Bouyer on Liturgical Reform: “More intolerant and fussy than anything we’ve ever known.”

“Perhaps in no other area is there a greater distance between what the Council worked out and what we actually have.” —Professor Louis Bouyer

Jeff Ostrowski · November 20, 2024

PDF Download • “Entrance Chant” for this Coming Sunday (Christ the King) — 34th in Ordinary Time

Including three separate points on Dom Combe’s shameful and defamatory statement.

Corrinne May · November 19, 2024

“Imagine You’re Out of Rehearsal Time but Desperately Need a Hymn for Advent…”

“I had such fun recording the vocals for these rehearsal videos.” —Corrinne May

Jeff Ostrowski · November 19, 2024

“Reader Feedback” • 19 November 2024

“I’m currently gathering materials for a newly ordained priest…”

Jeff Ostrowski · November 18, 2024

High Resolution Scan • “Missale Romanum” (1857)

This rare missal from 1857 contains some musical notes.

Richard J. Clark · November 14, 2024

PDF Download • “Put Out into the Deep”

“His appointment was somewhat unexpected as he was installed as Bishop of Providence in May of 2023.” — Richard J. Clark

Veronica Moreno · November 13, 2024

PDF Download • “Polyphonic Enhancement” for the Lord’s Prayer (Mass in English)

As the congregation sings their part, the choir “enhances” them with polyphony. This is genius!

Jeff Ostrowski · November 12, 2024

PDF Download • “Entrance Chant” for this Coming Sunday (33rd Sunday in Ordinary Time)

The sixth mode is sometimes the “peaceful” mode.

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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

“If I could only make the faithful sing the Kyrie, the Gloria, the Credo, the Sanctus, and the Agnus Dei…that would be to me the finest triumph sacred music could have, for it is in really taking part in the liturgy that the faithful will preserve their devotion. I would take the Tantum Ergo, the Te Deum, and the Litanies sung by the people over any piece of polyphony.”

— ‘Giuseppe Cardinal Sarto, Letter to Msgr. Callegari (1897)’

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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