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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 6, 2024

“Entrance Chant” for this Coming Sunday • Jeff Attempts to Accompany Himself on the Organ

Singing Gregorian Chant lifts one’s spirits. Agree or disagree?

Jeff Ostrowski · November 5, 2024

“Entrance Chant” • Sunday (10 Nov. 2024)

The reformers borrowed this “Entrance Chant” from the Ember Saturday of Lent.

Jeff Ostrowski · November 4, 2024

Re: Copyright Status of “Abbey Psalms & Canticles” (PDF Chart)

There’s been considerable online discussion about this. Our readers have a right to know what’s at issue.

Jeff Ostrowski · November 4, 2024

“Free” Is Better!

A masterpiece for Soprano, Alto, and Bass.

Jeff Ostrowski · November 4, 2024

“I Bow to Rebecca Raber Who Oversees the Music in This Chapel.” —Mike Aquilina

“This is not the choir!” … exclaims Mike Aquilina.

Jeff Ostrowski · November 1, 2024

“All Saints” • Jeff Ostrowski Tries to Simultaneously Accompany His Voice on the Organ

Although it beggars belief, in his entire life Father Josef A. Jungmann never celebrated a sung Mass—not one!

Jeff Ostrowski · October 31, 2024

Music List • (31st Sund. Ordinary Time)

Readers have expressed interest in perusing the “music list” I’ve prepared for this coming Sunday.

Jeff Ostrowski · October 30, 2024

PDF Download • “Entrance Chant in English” (31st Sunday in Ordinary Time) for 3-NOV-2024

With a brief digression on “feelings of inadequacy.”

Jeff Ostrowski · October 29, 2024

“Entrance Chant” for Sunday (3-NOV-2024)

The reformers borrowed this “Entrance Chant” from Wednesday in the 2nd week of Lent.

Jeff Ostrowski · October 29, 2024

Parallel Fifths In Plainsong Accompaniment?

The great masters sometimes even wrote parallel sevenths!

Jeff Ostrowski · October 29, 2024

A Suggestion for Ordinary Form Masses

The idea developed (somehow) that having the priest wait 15 minutes for an item he needs is “good and reverent” liturgy. But that’s false.

Jeff Ostrowski · October 28, 2024

The Truth About Chant Modality

It’s distressing to observe (in certain in quarters) an immature understanding of modality.

Jeff Ostrowski · October 28, 2024

Bishop of Jefferson City Forbids Hymns

Bishop McKnight earned a doctorate in Sacred Theology.

Jeff Ostrowski · October 26, 2024

Music List • (30th Sund. Ordinary Time)

Readers have expressed interest in looking over the “music list” I’ve prepared for this coming Sunday.

Jeff Ostrowski · October 24, 2024

New Treasures Daily?

What lofty language!

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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

“If the right is given to African tribes to include their pagan traditions in the liturgy, I think the same should also be given to the rite of a thousand year-old Christian Church, based on a much older Roman tradition.”

— Professor László Dobszay

Recent Posts

  • Luis Martínez Must Go!
  • Pope Pius XII Hymnal?
  • PDF Download • “Gospel Acclamation” for 29 June (Solemnity of Saints Peter and Paul, Apostles)
  • “Hybrid” Chant Notation?
  • Available! • Free Rehearsal Videos for Agnus Dei “Mille Regretz” after Gombert (d. 1560)

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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.

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President’s Message (dated 30 May 2025)

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