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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

Singing the Mass

Keven Smith · May 27, 2022

On Mistakes (Part II of II)

How we all respond to mistakes can have a huge effect on the cohesiveness and sound of our choirs.

Follow the Discussion on Facebook

Jeff Ostrowski · March 9, 2022

PDF • “Hymn Suggestions For Each Sunday”

The conscientious choirmaster takes people where they are and then—carefully and prudently—leads them to something higher.

Fr. David Friel · March 31, 2019

Sacred Music US • Website for Fr. Weber’s Resources

A website exists to disseminate Fr. Samuel Weber’s sacred music resources

Fr. David Friel · March 24, 2019

New Musical Settings for the Blessing of the Holy Oils

The USCCB has provided freely downloadable versions of the musical settings of these newly translated texts.

Fr. David Friel · February 2, 2019

Fourth-Century Advice for Choir Directors

A passage from Nicetas of Remesiana remains eminently applicable today.

Fr. David Friel · March 19, 2017

What to Do with the “Fourth Option”

A new Adoremus article explores how best to overthrow the tyranny of “alius cantus congruus.”

Fr. David Friel · October 2, 2016

New Collection of Propers from GIA

The growing market for Mass propers is a sign of promise.

Fr. David Friel · September 25, 2016

Turning Off the Air Conditioning

Taking Advantage of the Natural Beauty that Surrounds Us

Richard J. Clark · September 23, 2016

The Choir Isn’t Everything

The priest’s musical role is enormously influential. This can not be emphasized enough.

Fr. David Friel · September 11, 2016

Composition Contest

Submissions Sought by the Conference of Roman Catholic Cathedral Musicians

Fr. David Friel · April 24, 2016

Instruction on Sacred Music by Bishop John Doerfler

Introducing a Five-Year Plan for the Future of Sacred Music in the Diocese of Marquette

Fr. David Friel · January 31, 2016

Too Many Options

Allowing Adolescents to Choose Their Faith & the Wide-Open Permissions of the GIRM

Fr. David Friel · June 14, 2015

OFFERTORY: Chant Propers in Three Parts for Sundays & Feasts

Exciting New Collection of Simple English Propers!

Richard J. Clark · May 8, 2015

Why Should We Sing the Psalms at Mass?

if we do not sing the antiphons proper to the day—and the corresponding Psalm verses—we risk having a narrow view of the Psalms.

Fr. David Friel · April 26, 2015

A Criticism & Good News

Another Look at Fr. Weber’s “The Proper of the Mass”

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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

“It would be difficult to find a failure of imagination greater than that of Carl Czerny.”

— Robert Schumann

Recent Posts

  • Which Mass?
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  • PDF Download • “Gregorian Chant Booklet” mailed by Pope Saint Paul VI to every bishop
  • My Response Surprised A Parishioner ‘Upset’ About Latin

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