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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 · November 10, 2016

Musical Resources • 13 November (1962 Missal)

He said, “Make room there; for the girl is not dead, but sleepeth.” And they laughed Him to scorn.

Jeff Ostrowski · November 9, 2016

Complete “Ite Missa Est” for Parish Organist

Accompaniments by Achille P. Bragers (1887-1955).

Jeff Ostrowski · November 8, 2016

Do You Recognize This Hymn Tune? 1

The Brébeuf hymnal will include texts by contemporary Roman Catholic poets.

Jeff Ostrowski · November 8, 2016

Hysteria Over CDW Appointments?

Including two myths: one about the EF, and one about the OF.

Jeff Ostrowski · November 8, 2016

Do You Recognize This Hymn Tune?

The Brébeuf hymnal will include texts by contemporary Roman Catholic poets.

Jeff Ostrowski · November 4, 2016

Musical Resources • 6 November (Extraordinary Form)

“Grant that…through this sacrament which we have received, whatever is evil in our hearts may be restored by its gift of healing.”

Jeff Ostrowski · November 3, 2016

New Release! • “Dies Irae” Rehearsal Video

Also includes a printable score with literal English translation!

Jeff Ostrowski · November 1, 2016

“Sanctus” Recorded By Young Ladies From Las Vegas • Fabulous!

Palestrina cleverly interweaves an ancient hymn.

Jeff Ostrowski · October 30, 2016

Musical Resources • Feast of Christ the King

“Ask of Me, and I will give thee the nations for thine inheritance…”

Jeff Ostrowski · October 30, 2016

“Kyrie VIII” Organ Accompaniment by Flor Peeters

…with the Solesmes markings.

Jeff Ostrowski · October 24, 2016

PDF Download • Rare Hymnal by Organist at the Birmingham Oratory (1913)

Download all 572 pages—thanks to Peter Meggison!

Jeff Ostrowski · October 24, 2016

“Pleni sunt coeli et terra gloria tua.”

Living in Los Angeles—what I miss most.

Jeff Ostrowski · October 23, 2016

Musical Resources • 23rd Sunday after Pentecost

“Remit, we beseech Thee, O Lord, the sins of Thy people…”

Jeff Ostrowski · October 19, 2016

Watershed: Established Ten Years Ago Today!

What keeps us going is our wonderful readers, whose kindness and witness inspire us.

Jeff Ostrowski · October 18, 2016

Palestrina • Jaw-Dropping “Kyrie” based on a Hymn

Two generous young ladies, currently in high school, helped me record this gorgeous Kyrie.

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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

Benedict XVI in particular felt it was wrong to prohibit the celebration of Mass in the ancient rite in parish churches, as it is always dangerous to corner a group of faithful so as to make them feel persecuted and to inspire in them a sense of having to safeguard their identity at all costs in the face of the “enemy.”

— Archbishop Georg Gänswein

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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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