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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

President's Corner

Patrick Williams · August 8, 2023

Gregorian Offertory • “Exaltabo te Domine”

Eleventh Sunday after Pentecost, Seventeenth Sunday in Ordinary Time, Ash Wednesday

Jeff Ostrowski · August 7, 2023

PDF Booklet • 25 Pages!

As of a few minutes ago, you may go here to download the organ accompaniment booklet (25 pages) I created for the feast of the TRANSFIGURATION. Obviously, that feast will not take place for another year. Nevertheless, several techniques I used may be of interest to those who create liturgical booklets.

Jeff Ostrowski · August 1, 2023

Summer Singers’ Repertoire!

I mentioned a 3-Voice Setting of the AGNUS DEI, based on a Canon by William Byrd (d. 1623) in the context of the “hairpin” technique, something I really will emphasize this coming season. The piece is for Soprano, Middle, and Baritone. (The “Middle” voice should ideally be a mixture of women and men.) Recently, we […]

Jeff Ostrowski · July 27, 2023

Did You See This? (27 July 2023)

In case anybody missed it, we recently updated our editorial policy. Our website continues to grow in popularity—Deo gratias! Therefore, it seemed appropriate to ‘codify’ what we’ve been doing for the last few years.

Jeff Ostrowski · July 26, 2023

Know Anybody Famous?

It’s really humbling—and also very cool—to come across examples of how acclaimed several of my colleagues are. I was doing some research for a recent post and came across (!) one of our contributors in a place I was not expecting. You can see which one if you click here and scroll towards the middle […]

Jeff Ostrowski · July 23, 2023

What Charles Weaver Did (!)

Dr. Weaver kindly made me aware of something stupendous. Created by Abbat Pothier’s assistant and approved by his successor (about ten years after his death), it’s a KYRIALE, GRADUALE, and VESPERALE: 2,000 pages long! It’s in Gregorian notation on five staves and marks each mora vocis. Here’s a photograph of the “Puer Natus” INTROIT taken with my […]

Dr. Charles Weaver · July 22, 2023

An Interview with Bruno de Labriolle

Readers interested in different stylistic approaches to Gregorian chant may enjoy this interview with the singer Bruno de Labriolle, who directs the schola of Saint-Bruno-des-Chartreux in Lyon. The views on chant and liturgy aired in the interview aren’t exactly the same as those of any of our contributors, but I personally find this group’s performances, in […]

Jeff Ostrowski · July 20, 2023

More Than A Chart!

I’ve received many compliments about a comparison chart which was part of a recent article I posted. I feel flattered by these kind words, but I would like to point out that my chart doesn’t make much sense unless one reads the entire article.

Jeff Ostrowski · July 19, 2023

Fancy, no?

We have updated our donate by check window. Pretty fancy, no? When possible, we try to do things in an “artistic” way.

Jeff Ostrowski · July 11, 2023

Desperate Plea from Jeff Ostrowski

The president of Corpus Christi Watershed has made another urgent appeal. It was released on TUESDAY, 11 July 2023. Thank you for your consideration, your generosity, and your love!

Jeff Ostrowski · June 30, 2023

“Counter-Melody” for a Hymn Tune…

Jeff Ostrowski has added a “counter-melody” to CUPERTINO, a hymn tune composed by Kevin Allen. You can download the Organist Score (PDF), which doubles as the vocalist score. You can also hear Jeff’s volunteer choir sing that “counter-melody” version in real life by clicking here.

Jeff Ostrowski · June 19, 2023

Easter Sequence • “Both English and Latin”

Earlier this afternoon, I created an organ harmonization for the EASTER SUNDAY SEQUENCE: Víctimæ Pascháli Laudes in English and Latin. The rhythm conforms to the pure (“untouched”) Vatican Edition, like what you’d find in editions by Schwann, Monsignor Nekes, Max Springer of Beuron, and Peter Wagner (Commissionis Pontificiæ Gregorianæ Membrum). The beautiful and highly accurate […]

Jeff Ostrowski · June 18, 2023

Theological…

The 330-page booklet for Sacred Music Symposium contains more than just fabulous and inspiring music. Little theological ‘tidbits’ cover its pages. For example, consider Page 265. You can download a PDF copy of the entire booklet at the Symposium website.

Jeff Ostrowski · May 27, 2023

PDF • “For General Use Until Advent”

If you conduct a volunteer choir, you might consider using this Simple Piece #40273 (“Adésto Sáncta Trínitas”) which can be used during the rest of the liturgical season until Advent. It’s based on the well known hymn tune: OLD HUNDREDTH. Rehearsal videos are available at #40691. A live recording of #40273 (“Adésto Sáncta Trínitas”) by […]

Jeff Ostrowski · May 19, 2023

Introit • (This Coming Sunday)

Our volunteer choir appreciates training videos, so here’s my attempt at recording “Exáudi Dómine Vocem Meam,” which is the INTROIT for this coming Sunday. This coming Sunday is Dominica Post Ascensionem (“Sunday after the feast of the Ascension”). It is sung according to the official rhythm of the Catholic Church.

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Primary Sidebar

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

“Victoria not only made his professional debut as church organist: he also continued active on the organ bench until the very eve of his death. Indeed, during his last seven years at Madrid (1604-1611) he occupied no other musical post but that of convent organist.”

— Dr. Robert Stevenson (1961)

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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