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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 · March 22, 2025

“Music List” • 3rd Sunday of Lent

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · March 17, 2025

“Entrance Chant” • 3rd Sunday of Lent

This “Entrance Chant” is used during liturgical years A, B, and C.

Jeff Ostrowski · March 17, 2025

“Opportunity of a Lifetime” • Don’t Miss This!

The vast majority of these women had never sung plainsong—but they’ve taken to it like a duck to water.

Jeff Ostrowski · March 13, 2025

“Music List” • 2nd Sunday of Lent

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · March 12, 2025

“Entrance Chant” • 2nd Sunday of Lent

This English adaptation uses mode 4, as does the authentic Gregorian Chant version.

Jeff Ostrowski · March 10, 2025

A Spanish Hymn for Lent

This particular hymn is being considered for inclusion in the “Cantoral del Padre Antonio Daniel.”

Jeff Ostrowski · March 7, 2025

“Music List” • 1st Sunday of Lent

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · March 7, 2025

“Kyrie Setting” we’re doing for Lent

Kyrie VIII with polyphony.

Jeff Ostrowski · March 6, 2025

Watch David Poon Defeat Jeff in His Own “Hymn Challenge” — Re: The English Method

Bonus! Six (6) of my favorite Lenten hymns.

Jeff Ostrowski · March 5, 2025

“You who dwell in the shelter of the Lord…”

I’m not sure I know another feast like the 1st Sunday of Lent.

Jeff Ostrowski · March 4, 2025

“Entrance Chant” • 1st Sunday of Lent

This English adaptation uses mode 8, as does the authentic Gregorian Chant version.

Jeff Ostrowski · March 1, 2025

“Music List” • 8th Sunday (Ord. Time)

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · February 28, 2025

Communion • 8th Sunday Ord. Time

This communion is particularly beautiful.

William J. Fritz · February 28, 2025

From Inspiration to Implementation • “Lenten Choral Extensions” (And a Free Gift!)

I decided to try something different for Lent…

Jeff Ostrowski · February 26, 2025

“Entrance Chant” • 8th Sunday (Ord. Time)

This English adaptation uses mode 1, as does the authentic Gregorian Chant version.

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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

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    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 they protest and want, for example, to retain at least the familiar chants of the ordinary Mass in Latin, they are told that their protest is worthless. They are not “trained.” There is no reason to take account of what they say!

— Father Louis Bouyer (1968)

Recent Posts

  • PDF Download • “Funerals in the Ordinary Form”
  • Extreme Unction
  • Which Mass?
  • Like! Like! Like!
  • PDF Download • “Pange Lingua” in Simple (Contemporary) Polyphony for Three Voices

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