PDF Download • César Franck Book of Gregorian Chant Accompaniments (156 Pages)
“The organ is so universally used as an accompanying instrument today that there is a pressing need to provide a written accompaniment…” —César Franck
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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 organ is so universally used as an accompanying instrument today that there is a pressing need to provide a written accompaniment…” —César Franck
From a reader in New Hampshire: “I just love your articles and resources! You provide an excellent resource!”

Including an “added bonus” I discovered while researching Julius Bas (an Italian musicologist and organist).
If we truly believe what we say we believe, how can we allow goofy, off-Broadway, secular, casual music at Mass?
A VESPERS ACCOMPANIMENT BOOKLET (20 pages) for this coming Sunday—the 5th Sunday after Easter—can now be downloaded. Those who sing Vespers exactly as given in the ANTIPHONALE ROMANUM will notice that all five psalms for Eastertide are sung according to the exact same tone with the exact same differentiæ. Can someone explain why this is? […]
As of 6 May 2023, anyone who wishes to may download the COMPLETED BOOKLET (330 pages) which was created for participants of Sacred Music Symposium 2023. Those who were accepted to participate in this year’s conference will be presented with their own (hard-copy) printed version of this breathtaking booklet. The faculty this year includes Professor […]
Examples of comments we recently received, from all over the globe: (1) “The Byrd composition your student sung was certainly beautiful. I cannot say how thankful I am for all that CCWATERSHED does in the world of sacred music. The videos, and recorded audios and newsletters are wonderful and beautiful. When you said that […]

Too many priests are ignorant of the glories of authentic sacred music.

To recruit, teach, inspire, and retain volunteer choir members is no easy task!

The current situation is heartbreaking.

As late as 1924, Dom Mocquereau mentioned Dom Desrocquettes “whose beautiful and discreet accompaniments I hear every day at Solesmes.”
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Today we release polyphony by two composers: William Byrd and William Fritz.

How dare we—who are so sinful—how dare we receive our Lord?

Sung according to the official rhythm of the Catholic Church.

My choir will definitely be using these settings. They’re something many have begged for!
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