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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 December 2023

Jeff Ostrowski · December 12, 2023

“PPG” • Plainsong Progress by Girls

You can listen to this ‘live’ recording of females singing the INTROIT (“Pópulus Sýon”) last Sunday, which was the Second Sunday of Advent. I accompanied them softly on the pipe organ. I would like to remind everyone who listens: 100% of the singers in my choir are volunteers recruited from the congregation. Indeed, the two […]

Jeff Ostrowski · December 10, 2023

New Hymn By Father Dylan Schrader

That’s not an easy hymn to sing 𝘢 𝘤𝘢𝘱𝘱𝘦𝘭𝘭𝘢 but my volunteer choir attempted it. If you think it’s easy, please send me a recording of your choir singing it!

Andrea Leal · December 8, 2023

What Ever Happened to Advent?

Juanpablo Macias, a seminarian studying for the Archdiocese of Las Vegas, enjoys composing, singing, and playing organ for the sacred liturgy.

Dr. Charles Weaver · December 8, 2023

An Important Anniversary

Dom Pothier died 100 years ago today.

Jeff Ostrowski · December 6, 2023

(Advent, 2nd Sunday) • Introit “Pópulus Sion” Sung According to the Official Rhythm

We can hardly do better than to join in the same melodies sung by Catholic saints throughout history.

Jeff Ostrowski · December 5, 2023

Schola Director Posts ‘Live’ Recording

As I explained in my article posted earlier today, Nun Komm Der Heiden Heiland is actually a Catholic tune (in spite of what some have claimed). The volunteer choir I direct sang that beautiful ADVENT melody last Sunday, and I invite you to listen to the live recording. It will get better the more we […]

Jeff Ostrowski · December 5, 2023

PDF Download • “Lo! He comes with clouds descending” (Advent Hymn) — A Catholic Version!

Some days, Fulton J. Sheen received as many as 30,000 letters.

Richard J. Clark · December 5, 2023

Announcement of Easter & the Moveable Feasts • El Anuncio de la Pascua y Fiestas Movibles • 2024

English and Spanish — scores and practice videos in with dates for 2024!

Corpus Christi Watershed · December 4, 2023

Dr. Alexis Kutarna Shares Photographs of Texas Workshop With Composer Kevin Allen

Dr. Kutarna teaches liturgical music courses at the University of Saint Thomas in Houston, Texas.

Richard J. Clark · December 4, 2023

Announcement of the Nativity of the Lord from the Roman Martyrology • Practice Video

Practice video for the Announcement of the Nativity of the Lord from the Roman Martyrology

Jeff Ostrowski · December 1, 2023

1963 Photograph • Original Lyrics for Fr. Hellriegel’s “To Jesus Christ Our Sovereign King”

Photograph from 1963, the year Monsignor Hellriegel published his 𝐻𝑜𝑙𝑦 𝐶𝑟𝑜𝑠𝑠 𝑃𝑎𝑟𝑖𝑠ℎ 𝐻𝑦𝑚𝑛𝑎𝑙.

Jeff Ostrowski · December 1, 2023

Message from the Vice-President!

The Vice-President of the Church Music Association of America, Dr. Horst Buchholz (who also serves as Director of Sacred Music for the Archdiocese of Detroit) sent us an email yesterday regarding the harmonizations (PDF) I composed for the Gregorian Chant psalm tones. Dr. Buchholz says: “Those settings are absolutely exquisite, as I’m used to when […]

Jeff Ostrowski · December 1, 2023

My Response to Dr. Weaver’s Latest Article

Is it fair to forever bind Dom Guéranger to what he wrote about “barbarous archaisms” in 1855?

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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

“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

  • Extreme Unction
  • Which Mass?
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  • PDF Download • “Pange Lingua” in Simple (Contemporary) Polyphony for Three Voices
  • PDF Download • “Gregorian Chant Booklet” mailed by Pope Saint Paul VI to every bishop

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