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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

Veronica Brandt · November 7, 2015

Chore wars and maintaining motivation

Setting up choir folders would have to rank 50XP and 30 gold pieces with a 50% chance of battling a carnivorous ring binder to gain a rare fragment of an illuminated manuscript.

Guest Author · November 7, 2015

Sermon on Poor Souls • Based on Wisdom 2:23—3:9

A guest article by Fr. Valentine Young, OFM

Jeff Ostrowski · November 7, 2015

Simple 2-Part Canon For Men & Women

You will love what Henri Durieux has done with this hymn melody.

Richard J. Clark · November 6, 2015

The People Deserve Better

Two documents that speak directly to the issue of liturgical experimentation and abuse.

Andrew Leung · November 5, 2015

Active Participation in the Traditional Latin Mass

2 Churches demonstrate active participation in the Tridentine Mass.

Jeff Ostrowski · November 5, 2015

Liturgical Press Has An “Oops” Moment

“If we had known what the prayers really said, we would not have wanted to pray them any longer.” —Paul Inwood

Dr. Lucas Tappan · November 3, 2015

My Personal Lesson Plan for Training Probationers

Here is the entire set of lesson plans I use for training our Probationers.

Fr. David Friel · November 3, 2015

Trination on All Souls: My Thoughts

Having invited reader input the other day, I offer now my own opinion.

Jeff Ostrowski · November 1, 2015

Musical Resources • Feast of All Saints (November 1st)

“…most humbly we pray that—since so great is the number of thine elect pleading in our behalf—we may partake, in all their fulness, of thine abounding mercies…”

Fr. David Friel · November 1, 2015

Should Priests Trinate on All Souls’ Day?

Whether the Permission to Do So Constitutes an Encouragement to Do So

Veronica Brandt · October 31, 2015

Guinea Pigs and the Old Sequence for All Souls Day

Dies Irae – day of wrath and day of mourning. Our pets’ passing provided a poignant reminder of our mortality.

Richard J. Clark · October 30, 2015

Text and Emotion • Our Pastoral Responsibility

Treat the Word of God carelessly, and we will lose our orientation towards the Divine. It is therefore, a pastoral responsibility to ensure the God’s Word reaches the faithful.

Jeff Ostrowski · October 30, 2015

“Te Saeculorum” • Simple, Sensational, SATB

Were you aware of this amazing piece by Raphaël Mercier?

Dr. Alfred Calabrese · October 29, 2015

It’s All About The Players

The social construct of a choir should be like an inverted pyramid.

Andrew Leung · October 28, 2015

An American Requiem

A Funeral Guide for helping Catholic pastors, choirmasters and families in America honor our beloved dead.

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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

“The pope regrets that this trade in African slaves, that he believed having ceased, is still exercised in some regions and even more cruel way. He begs and begs the King of Portugal that it implement all its authority and wisdom to extirpate this unholy and abominable shame.”

— ‘Pope Pius VII, writing to the King of Portugal’

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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