PDF Download • “Gregorian Accompaniments” … Just in time for Advent! (366 pages)
The second half of today’s article answers questions submitted by Mr. Matthew Frederes.
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A theorist, organist, and conductor, Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He completed studies in Education and Musicology at the graduate level. Having worked as a church musician in Los Angeles for ten years, in 2024 he accepted a position as choirmaster for Saint Mary of the Immaculate Conception in Michigan, where he resides with his wife and children. —Read full biography (with photographs).
The second half of today’s article answers questions submitted by Mr. Matthew Frederes.
Mr. Williams, today I challenge you (please) to provide direct responses for two questions.
You can evaluate my attempt to record this Sunday’s INTROIT according to the official rhythm of the Catholic Church. This INTROIT is very well known because it’s repeated over and over at the end of the year, depending on how many Sundays after Pentecost occur in a particular year.

I will not insult your intelligence by telling you what I suspect happened.

Including two (2) documents translated into English for the first time!

“Missa Back-To-The-Future” (a recent OCP offering) isn’t part of the treasury mandated by Vatican II; nor do I belong on the basketball court with Michael Jordan.

Tom died suddenly on 24 October 2022 (a month shy of his 67th birthday) at his home in Charlotte.
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My colleague, Patrick Williams has agreed to enter into a “colloquy” with me vis-à-vis Gregorian rhythm.
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I have attempted to record the Introit for the Feast of Christ the King according to the official rhythm of the Catholic Church. You can view the YouTube recording of my attempt. Traditionally, our Savior’s “kingship” was celebrated as part of the Epiphany—but in 1925, Pope Pius XI created the “feast of Christ the King” […]
Good morning! My name is […] and I write to you from Chile. Just a short note to say: thank you for your wonderful website “Corpus Christi Watershed.” As a Catholic organist, I truly appreciate the marvelous work you have done. Your website is a tremendous library open to everyone. Thanks so much, and God […]

Nobody seems capable of answering this question.

Our Lord said that if men withheld their praise of Him, “the very stones would cry out…”
I can’t think of better way to learn Gregorian chant than to download this 651-page PDF file, containing the marvelous Gregorian Vesperale (1915) by Father Karl Weinmann (d. 1929) printed on five lines. If you accompany Vespers directly from the plainsong notation, this makes life easy! It’s also fun to compare the Gregorian chant inside […]
In Canada, they list Father Brébeuf first—in the United States, Father Jogues.
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