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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 · April 8, 2026

Buckfast Abbey Weighs In

Dom John Stéphan was a Benedictine monk of Buckfast Abbey in South Devon, England.

Jeff Ostrowski · April 7, 2026

PDF Download • “Catholic Hymnal & Service Book” (632 Pages)

Includes an interesting harmonization for “Víctimae Pascháli Laudes.”

Jeff Ostrowski · April 6, 2026

PDF • “Liturgical Law” (467 Pages)

Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon).

Jeff Ostrowski · April 6, 2026

Gregorian Chant … with Organ Accompaniment?

I don’t recognize this particular melody.

Jeff Ostrowski · April 6, 2026

Responsorial Psalm Fauxbourdon?

What does this actually sound like?

Jeff Ostrowski · April 5, 2026

Music List • (Easter Sunday, 2026)

Readers have expressed interest in examining my “music list” for Easter Sunday 2026.

Jeff Ostrowski · April 1, 2026

PDF Download • “Sprinkling Rite”

At the last second, a few tones were changed in the antiphon.

Jeff Ostrowski · April 1, 2026

‘Sarum’ Good Friday?

Do you recognize it?

Jeff Ostrowski · March 31, 2026

Gregorian Chant • The “Correct” Way of Singing ?

Now I will explain what that means.

Jeff Ostrowski · March 30, 2026

PDF Download • “Eb Organ Postlude”

Although a Lutheran himself, he held the appointment at a Roman Catholic Cathedral until his death.

Jeff Ostrowski · March 29, 2026

Fulton J. Sheen • “24-Hour Catechism”

(11 of 50) “Most Holy Trinity”

Jeff Ostrowski · March 28, 2026

Music List • (Palm Sunday, 2026)

Readers have expressed interest in examining my “music list” for this coming Sunday.

Jeff Ostrowski · March 28, 2026

Easter • Would You Sing This Hymn?

Should this be added to the “pernicious hymn pairing” collection?

Jeff Ostrowski · March 24, 2026

Pipe Organ “Answers” in Plainsong?

Some might be a bit confused as to why it says the organ “answers” in Plainsong.

Jeff Ostrowski · March 24, 2026

“Gregorian Chant Quiz” • 24 March 2026

How well do you know your Gregorian hymns?

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Corpus Christi Watershed

President’s Corner

    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
    Simplified Accomp. • Schubert’s “Ave Maria.”
    Sometimes the organist must simultaneously serve as the CANTOR. (Those who work in the field of church music know exactly what I’m talking about.) One of our contributors composed this simplified keyboard accompaniment for Franz Schubert’s “Ave Maria,” a piece which is frequently requested for Catholic funerals and weddings. In terms of the discussion about whether that piece is too theatrical (‘operatic’) for use in Church, I will leave that discussion to others. All I know is, many church musicians out there will appreciate this simplified version.
    —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

“How on earth in the [post-conciliar] liturgy for the dead should there be no more mention of sin and expiation? There’s a complete absence of imploring the Lord’s mercy. […] Although the texts were beautiful they were still lacking in the sense of sin and the sense of mercy. But we need this! And when my final hour comes, ask for mercy for me from the Lord, because I have such need of it!”

— Pope Saint Paul VI (3 June 1971)

Recent Posts

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

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