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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

Jeff Ostrowski • Article Archive

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).

Jeff Ostrowski · May 7, 2023

Symposium Booklet (330 Pages)

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 […]

Jeff Ostrowski · May 6, 2023

6 May 2023 • FEEDBACK

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 […]

Jeff Ostrowski · May 6, 2023

PDF Download • “Brief Choral Alleluia” (Suitable for the Ordinary and Extraordinary Form)

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

Jeff Ostrowski · May 5, 2023

PDF Download • “Vespers Accompaniment Booklet” (Fifth Sunday after Easter) — 20 pages

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

Jeff Ostrowski · May 4, 2023

Six (6) Pernicious Hymn Pairings

The current situation is heartbreaking.

Jeff Ostrowski · May 2, 2023

Should Chant Be Accompanied On The Organ?

As late as 1924, Dom Mocquereau mentioned Dom Desrocquettes “whose beautiful and discreet accompaniments I hear every day at Solesmes.”

Follow the Discussion on Facebook

Jeff Ostrowski · April 30, 2023

My Student Singing Byrd Will Make You Weep!

Today we release polyphony by two composers: William Byrd and William Fritz.

Jeff Ostrowski · April 29, 2023

Photograph • Pope Saint Paul VI Distributes Holy Communion (Kneeling, On The Tongue)

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

Jeff Ostrowski · April 29, 2023

Introit • “Jubiláte Déo” (3rd Sunday after Easter)

Sung according to the official rhythm of the Catholic Church.

Jeff Ostrowski · April 27, 2023

PDF Download • “English Hymns for Three Voices” (SSA), edited by Dr. Theodore Marier—182 pages

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

Jeff Ostrowski · April 27, 2023

FEEDBACK • 26 April 2023

A reader wrote to us about the MELCOMBE HYMN ARTICLE (whose official title was: 1950s Catholicism: Do We Want It Back?) with these kind words: “I so wish there was a CD of your choir. The Introit the other day stays with me all day!”

Jeff Ostrowski · April 26, 2023

“1950s Catholicism” • Do We Want It Back?

“I have found, to my astonishment, that Catholics…in their principal churches, do not to this day possess even one Mass setting even tolerably good, or which is not actually distasteful and operatic.” —Felix Mendelssohn (1835)

Jeff Ostrowski · April 24, 2023

It’s Coming!

The draft booklet (320 pages) which will—in a gorgeous hard-copy—be given to participants at the Sacred Music Symposium has been released. If you see any typos, please let me know ASAP. Thank you!

Jeff Ostrowski · April 22, 2023

PDF Download • Draft Copy — “2023 Symposium Booklet” (320 Pages)

I will never forget standing in that green room, waiting to go on stage.

Jeff Ostrowski · April 22, 2023

FEEDBACK • “Soul Was Craving”

I got this (personal) message from a choir member. I know we usually avoid sharing personal items, but hopefully this exception is warranted: “Dear Mr. Ostrowski, I read your recent article, “I Came From Somewhere.” I really enjoyed reading it. Thank you for all that you do. I appreciate your sentiments and your work to […]

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Corpus Christi Watershed

President’s Corner

    PDF Download • Communion for Sunday
    The COMMUNION ANTIPHON with fauxbourdon psalm verses for this coming Sunday (3 May 2026) is elegant and poignant. It’s such a shame it only comes every three years. This piece—along with all the musical scores for this coming Sunday, which is the 5th Sunday of Easter (Year A)—can be downloaded free of charge from the flourishing feasts website. By the way, how is it already 2026?
    —Jeff Ostrowski
    Season’s End Repertoire
    Looking at the REPERTOIRE SHEET until the end of the choral season, I see that I’ve fallen behind schedule. (The last three months have been extraordinarily busy.) As you know, I have been providing organ harmonies for all the ENTRANCE CHANTS—as well as rehearsal videos—and you can see I’m behind where I planned to be. Now I must make up lost ground. However, the choir picks up the ENTRANCE CHANT with ease, so I’m sure it will all work out. My ‘unofficial’ harmonizations are being posted each week at the flourishing feasts website.
    —Jeff Ostrowski
    PDF Download • “Funeral Procession”
    From a mediæval Book of Hours, I was sent this glorious depiction of a Roman Catholic funeral procession by Simon Bening (d. 1561). The image resolution is extremely high. I’m not sure I know of a more beautiful illustration of a mediæval church. And I love how the servers are wearing red and pink cassocks!
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski

Random Quote

It would be contrary to the Constitution to decree or even to hint that sung celebrations, especially of the Mass, should be in Latin.

— Annibale Bugnini attacking “Sacrosanctum Concilium” (§36)

Recent Posts

  • PDF Download • Communion for Sunday
  • “Translating the Bible” • Msgr. Ronald Knox (1953)
  • Season’s End Repertoire
  • PDF Download • “Funeral Procession”
  • Re: The “Correct” Way To Sing Gregorian Chant

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