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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

Archives for February 2018

Jeff Ostrowski · February 28, 2018

Contemporary “Stabat Mater” (SATB) • by Gustaaf Nees (d. 1965)

You’ve never heard this arrangement before—perfect for Lent.

Jeff Ostrowski · February 25, 2018

“Tu Es Petrus” (Rec. 2017 Symposium)

No matter how many people imitate John Denver on the guitar in our churches, Palestrina and Victoria will always be loved and sought by serious Catholics.

Veronica Brandt · February 24, 2018

Build your Music Theory Skills

How to Finally Acquire a Musical Education While Still in College or Anywhere Else (with apologies to James V Schall)

Jeff Ostrowski · February 22, 2018

“First Run Through” • Guerrero’s Kyrie

“To put it simply, I was pierced by the beauty of the liturgy in a way I have never before experienced.” —2017 participant

Andrew Leung · February 22, 2018

The Smoke of Satan

Blessed Pope Paul VI: “The smoke of Satan has entered the Church.”

Dr. Lucas Tappan · February 20, 2018

Building Your Choir Vocally

If more choirmasters were honest with themselves, they would probably acknowledge that no more than 25 to 40 percent of their singers are actually leaders within their choirs.

Jeff Ostrowski · February 19, 2018

Rare Lenten Hymns You’ve Not Sung

“Our hymnbooks know nothing of such a treasure as this, and give us pages of poor sentiment in doggerel lines by some tenth-rate modern versifier.” —Fr. Fortescue

Fr. David Friel · February 18, 2018

St. Thomas More on the Reception of Holy Communion

“Let us not lose this time…for we can hardly tell whether we will ever get in to church again or not.” —St. Thomas More

Veronica Brandt · February 17, 2018

Towards a Standard Protocol for Frayed Ribbons

Adding ribbons sounds like a fine idea, until they fray and come adrift. Serious bookmakers take precautions to stop ribbons fraying, but even amateurs can learn from these tips.

Jeff Ostrowski · February 15, 2018

Phone Interview • Fr. Guy Nicholls, Cong. Orat.

The Blessed John Henry Newman Institute of Liturgical Music (England) has a big announcement!

Jeff Ostrowski · February 13, 2018

Hymn Tunes That Are Actually The Same

Look carefully at this image…

Dr. Lucas Tappan · February 13, 2018

Review • Fr. White’s Tools for Rebuilding

I’m edified by Fr. White’s work, but hope his regard for “church growth” doesn’t negate the Sacramental and supernatural nature of the Church.

Jeff Ostrowski · February 12, 2018

“Live Excerpts” … With One Rehearsal

This is something we will do again, because I think there’s great potential here.

Fr. David Friel · February 10, 2018

1940’s Prayer for Priests

“Fit me, I pray Thee, for this task…”

Jeff Ostrowski · February 9, 2018

How Medieval Books Were Made

Absolutely *fascinating* beyond words!

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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 was placed in 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

When the matter is thus regarded, an assertion which is being made today, not only by laymen but also at times by certain theologians and priests and spread about by them, ought to be rejected as an erroneous opinion: namely, that the offering of one Mass, at which a hundred priests assist with religious devotion, is the same as a hundred Masses celebrated by a hundred priests. That is not true.

— Pope Pius XII (2 November 1954)

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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