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Corpus Christi Watershed

We’re a 501(c)3 public charity established in 2006. We have no endowment, no major donors, no savings, and run no advertisements. We exist solely by the generosity of small donors.

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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 · January 3, 2017

New Microphone

Please let me know your thoughts in the FB combox…

Jeff Ostrowski · January 2, 2017

“Table Altar” vs. “High Altar” (Novus Ordo)

It’s incorrect to say new Churches must be constructed with table altars.

Jeff Ostrowski · January 1, 2017

A Majestic Christmas Hymn That Isn’t Difficult

“Here lies He in the manger, alleluia, Who reigns without end, alleluia, alleluia.”

Jeff Ostrowski · December 31, 2016

Brave Schola Director Posts “Live” Recording…

A snippet caught by a generous alto at Candle-lit Mass in Hollywood.

Jeff Ostrowski · December 25, 2016

Proof Good People Still Exist

Several singers shown here helped record the Watershed polyphonic rehearsal videos.

Jeff Ostrowski · December 24, 2016

Christmas • When Jackie Gleason Broke Character (Updated)

I forgot something important…

Jeff Ostrowski · December 21, 2016

60 Minutes • “The Pope’s Choir” (Sistine Chapel)

This video sharply condemns the choir’s previous director…a dangerous game.

Jeff Ostrowski · December 20, 2016

Shortest “Kyrie” Palestrina Ever Wrote

Especially suited for the Ordinary Form—and did you spot the invertible counterpoint?

Jeff Ostrowski · December 14, 2016

Musical Resources • Christmas Midnight Mass (EF)

We won’t be singing “Rudolph the Red-Nosed Reindeer” for Offertory!

Jeff Ostrowski · December 14, 2016

Musical Resources • 4th Sunday of Advent (EF)

“Look with favor, we beseech Thee, O Lord upon these offerings here before Thee…”

Jeff Ostrowski · December 12, 2016

Bauer Family Sings “O Magnum Mysterium”

…Victoria lives, thanks to fine youngsters such as these!

Jeff Ostrowski · December 10, 2016

PDF Download • “Rorate Mass” Booklet

Including a video snippet taken in Los Angeles.

Jeff Ostrowski · December 9, 2016

Help! Why does my printer leave off the clivis?

When I print this entire booklet, the Communion inexplicably erases every clivis in the psalmody.

Jeff Ostrowski · December 9, 2016

Musical Resources • 3rd Sunday of Advent (EF)

“Rejoice in the Lord always; again I say, rejoice.”

Jeff Ostrowski · December 8, 2016

PDF Download • Immac. Conception Music Booklet

Make sure to read the translation of the Offertory Hymn—so gorgeous!

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Corpus Christi Watershed

President’s Corner

    Luis Martínez Must Go!
    Sevilla Cathedral (entry dated 13 December 1564): The chapter orders Luis Martínez, a cathedral chaplain, to stay away from the choirbook-stand when the rest of the singers gather around it to sing polyphony—the reason being that “he throws the others out of tune.” [Excerpt from “The Life of Father Francisco Guerrero.”]
    —Jeff Ostrowski
    Urgent! • We Desperately Need Funds!
    A few days ago, the president of Corpus Christi Watershed posted this urgent appeal for funds. Please help us make sure we’re never forced to place our content behind a paywall. We feel it’s crucial that 100% of our content remains free to everyone. We’re a tiny 501(c)3 public charity, entirely dependent upon the generosity of small donors. We have no endowment and no major donors. We run no advertisements and have no savings. We beg you to consider donating $4.00 per month. Thank you!
    —Jeff Ostrowski
    “Booklet of Eucharistic Hymns” (16 pages)
    I was asked to create a booklet for my parish to use during our CORPUS CHRISTI PROCESSION on 22 June 2025. Would you be willing to look over the DRAFT BOOKLET (16 pages) I came up with? I tried to include a variety of hymns: some have a refrain; some are in major, others in minor; some are metered, others are plainsong; some are in Spanish, some are in Latin, but most are in English. Normally, we’d use the Brébeuf Hymnal—but we can’t risk having our congregation carry those heavy books all over the city to various churches.
    —Jeff Ostrowski

Quick Thoughts

    Pope Pius XII Hymnal?
    Have you ever heard of the Pope Pius XII Hymnal? It’s a real book, published in the United States in 1959. Here’s a sample page so you can verify with your own eyes it existed.
    —Corpus Christi Watershed
    “Hybrid” Chant Notation?
    Over the years, many have tried to ‘simplify’ plainsong notation. The O’Fallon Propers attempted to simplify the notation—but ended up making matters worse. Dr. Karl Weinmann tried to do the same in the time of Pope Saint Pius X by replacing each porrectus. You can examine a specimen from his edition and see whether you agree he complicated matters. In particular, look at what he did with éxsules fílii Hévae.
    —Corpus Christi Watershed
    Antiphons Don’t Match?
    A reader wants to know why the Entrance and Communion antiphons in certain publications deviate from what’s prescribed by the GRADUALE ROMANUM published after Vatican II. Click here to read our answer. The short answer is: the Adalbert Propers were never intended to be sung. They were intended for private Masses only (or Masses without music). The “Graduale Parvum,” published by the John Henry Newman Institute of Liturgical Music in 2023, mostly uses the Adalbert Propers—but sometimes uses the GRADUALE text: e.g. Solemnity of Saints Peter and Paul (29 June).
    —Corpus Christi Watershed

Random Quote

Tournemire could be charming or he could bite your head off. One day I could not replace him at St. Clotilde because I had a wedding to play at another church. Tournemire played on Sunday, period—that was all. He did not play weddings and so forth. (He put all that on my back.) So I went to Tournemire’s house to tell him, “Master, I am sorry but, for once, I cannot replace you. I have another obligation to fulfill.” He said, “Get out of here!” I left for good.

— Testimony of Maurice Duruflé

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Corpus Christi Watershed is a 501(c)3 public charity dedicated to exploring and embodying as our calling the relationship of religion, culture, and the arts. This non-profit organization employs the creative media in service of theology, the Church, and Christian culture for the enrichment and enjoyment of the public.

The election of Pope Leo XIV has been exciting, and we’re filled with hope for our apostolate’s future!

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President’s Message (dated 30 May 2025)

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