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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

Julie Huebner · September 27, 2025

Unison • “Deceptively Easy, Relentlessly Unforgiving”

“That’s not just music. That’s Catholicism at its most apostolic, most bold, and most timeless.” —Julie Huebner

Jeff Ostrowski · September 27, 2025

“Reminder” — Month of September (2025)

It’s my pleasure to remind you that…

Jeff Ostrowski · September 26, 2025

PDF Download • Communion (26th Sn. Ord.)

This Communion antiphon sparkles with beauty.

Jeff Ostrowski · September 25, 2025

PDF Download • “Hymn by Father Thomas à Kempis” (arranged for 2 voices)

For the upcoming feast on 9 November (which replaces the Sunday Mass).

Jeff Ostrowski · September 24, 2025

“Canonic” • Ralph Vaughan Williams

This is quite a clever arrangement of “Come down, O love divine.”

Dr. Alfred Calabrese · September 23, 2025

Dr. Alfred Calabrese • “Three Recommendations for Children’s Repertoire”

Below are three compositions I’ve used with great success…

Jeff Ostrowski · September 22, 2025

Did they simplify these hymn harmonies?

Looking through a (Roman Catholic) German hymnal printed in 1952…

Guest Author · September 22, 2025

Installment #7 • Three (3) Questions Re: Forthcoming USA Lectionary

What is the specific criteria for this most recent tinkering?

Jeff Ostrowski · September 21, 2025

PDF Download • “Side-By-Side Comparison”

Re: the special hymn for the upcoming feast (9 November).

Jeff Ostrowski · September 20, 2025

PDF Download • Communion (25th Sn. Ord.)

This Communion antiphon glistens with resplendence!

Jeff Ostrowski · September 15, 2025

How do you pronounce this word in Latin?

Including a comparison chart (PDF) which many readers will appreciate.

Jeff Ostrowski · September 15, 2025

Cheap! Cheap! Cheap!

It’s always great to see old diocesan newspapers…

Andrea Leal · September 15, 2025

Children’s Repertoire: “3 Recommendations”

My top repertoire recommendations for easy, delightful, attainable songs.

Jeff Ostrowski · September 15, 2025

PDF Download • Dom Murray Harmonies

Along with so many others, I have deep respect for Dom Gregory Murray as a composer.

Jeff Ostrowski · September 14, 2025

“Music List” • 14 September (Holy Cross)

Readers have expressed interest in examining the “music list” I prepared for 14 September.

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Corpus Christi Watershed

President’s Corner

    Which Mass?
    In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.
    —Jeff Ostrowski
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski
    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

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

At papal Masses, the regulations against tardiness were more stringent than at Masses celebrated by cardinals or bishops. Giovanni Maria Nanino records that any singer who is not in his place—and in his vestments—by the end of the repetition of the “Introit” will be fined eight vinti. At papal Vespers, the singer who is not present at the “Gloria Patri” of the first psalm pays a fine of fifty balocchi.

— Giovanni M. Nanino (d. 1607), Papal “Maestro di Cappella”

Recent Posts

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