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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

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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Corpus Christi Watershed

President’s Corner

    Music List • (5th Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 5th Sunday of Lent (22 March 2026). If such a thing interests you, feel free to download it as a PDF file. Traditionally, this Sunday was called ‘Passion’ Sunday. Starting in 1956, certain church leaders attempted rename both ‘Passion’ Sunday and ‘Palm’ Sunday—but it didn’t work. For example, Monsignor Frederick McManus tried to get people to call PALM SUNDAY “Second Passion Sunday”—but the faithful rejected that. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    Music List • (Holy Thursday, 2026)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for Holy Thursday, which is 2 April 2026. If such a thing interests you, feel free to download it as a PDF file. I’m not sure I’ve ever heard a more piercingly beautiful INTROIT, and I have come to absolutely love the SATB version of ‘Ubi cáritas’ we are singing (joined by our burgeoning children’s choir). I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    “O Escam Viatorum” • (Holy Thursday)
    When I was very young, I erroneously believed the four psalms provided by the 1957 Liber Usualis—for Communion on Holy Thursday—were the “correct” music to sing on that first day of the TRIDUUM SACRUM. Those four psalms are: Psalm 22 (Dóminus regit me et nihil mihi déerit); Psalm 71 (Deus judícium tuum regi da); Psalm 103 (Bénedic ánima méa); and Psalm 150 (Laudáte Dóminum in sanctis ejus). It turns out I was way out in left field! While nothing forbids singing those psalms, many other options are equally valid. Our volunteer parish choir will sing this COMMUNION PIECE (joined by our burgeoning children’s choir) on Holy Thursday during Holy Communion. Needless to say, this will happen after the proper antiphon from the GRADUALE ROMANUM has been sung.
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Ubi Caritas” (SATB)
    I remember singing “Ubi Cáritas” by Maurice Duruflé at the conservatory. I was deeply moved by it. However, some feel Duruflé’s version isn’t suitable for small choirs since it’s written for 6 voices and the bass tessitura is quite low. That’s why I was absolutely thrilled to discover this “Ubi cáritas” (SATB) for smaller choirs by Énemond Moreau, who studied with OSCAR DEPUYDT (d. 1925), an orphan who became a towering figure of Catholic music. Depuydt’s students include: Flor Peeters (d. 1986); Monsignor Jules Van Nuffel (d. 1953); Arthur Meulemans (d. 1966); Monsignor Jules Vyverman (d. 1989); and Gustaaf Nees (d. 1965). Rehearsal videos for each individual voice await you at #19705. When I came across the astonishing English translation for “Ubi Cáritas” by Monsignor Ronald Knox—matching the Latin’s meter—I decided to add those lyrics as an option (for churches which have banned Latin). My wife and I made this recording to give you some idea how it sounds.
    —Jeff Ostrowski
    Stumped by “Episcopalian Hymnal” (1910)
    Some consider Songs of Syon (1910) the greatest Episcopalian hymnal ever printed. As a Roman Catholic, I have no right to weigh in one way or the other. However, this particular page has me stumped. I just know I’ve heard that tune somewhere! If you can help, please email me. I’m talking about the text which begins: “This is the day the Lord hath made; In unbeclouded light array’d.” The book is by George Ratcliffe Woodward, and its complete title is: Songs of Syon: A Collection of Psalms, Hymns, and Spiritual Songs. Back in 2016, Corpus Christi Watershed scanned and uploaded this insanely rare book. For years our website was the sole place one could download it as a PDF file.
    —Jeff Ostrowski
    PDF Download • “Holy, Holy, Holy”
    For vigil Masses on Saturday (a.k.a. “anticipated” Masses) we use this simpler setting of the “Holy, Holy, Holy” by Monsignor Jules Vyverman (d. 1989), a Belgian priest, organist, composer, and music educator who ultimately succeeded another ‘Jules’ (CANON JULES VAN NUFFEL) as director of the Lemmensinstituut in Belgium. Although I could be wrong, my understanding is that the LEMMENSINSTITUUT eventually merged with “Catholic University of Leuven” (originally founded in 1425). That’s the university Fulton J. Sheen attended.
    —Jeff Ostrowski

Random Quote

“The chapter orders that any cathedral singer or instrumentalist who uses a paid leave of absence to try out for a post elsewhere shall automatically forfeit his post at Seville Cathedral.” [From “The Life of Father Francisco Guerrero.”]

— Sevilla Cathedral: Chapter Resolution (7 September 1565)

Recent Posts

  • PDF Download • “Ubi Caritas” (SATB)
  • Summer 2026 • “Gregorian Chant Course” at Aquinas College (Nashville, TN)
  • Music List • (5th Sunday of Lent)
  • Music List • (Holy Thursday, 2026)
  • “O Escam Viatorum” • (Holy Thursday)

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