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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

PDF Download

Jeff Ostrowski · February 10, 2024

Must We “Love” All Gregorian Chant?

Where “Parce Dómine” (the famous song for Lent) came from.

Jeff Ostrowski · January 31, 2024

PDF Download • “Pew Edition” — Monsignor Martin B. Hellriegel’s Hymnal (149 Pages)

Including never-before-released photographs of Monsignor Martin B. Hellriegel.

Jeff Ostrowski · January 30, 2024

“Polyphonic Sanctus” by J.S. Bach • Jeff Attempts All Voices (Even the Girls’ Vocals)

The occasion I speak of is when he stopped by our home to see us one final time.

Jeff Ostrowski · January 29, 2024

PDF Score • “Mass Setting I Wrote For Corrinne”

I demonstrate how the “Kyrie Eleison” can be adapted for use in the Extraordinary Form.

Jeff Ostrowski · January 23, 2024

Response to Mike’s Letter • “Six Concrete Examples”

“I would dismiss it as the second text writer being lazy and stealing someone else’s music…” —Michael H.

Follow the Discussion on Facebook

Jeff Ostrowski · January 17, 2024

PDF Download • “Credo III + Polyphonic Extension”

When I just couldn’t take it anymore, I called up a friend on the telephone and paid him $150 to teach me.

Jeff Ostrowski · January 16, 2024

Which Hymns Are Appropriate After Christmas?

How many Catholics realize how closely the feast of the Epiphany is tied to the Holy Eucharist and Calvary?

Jeff Ostrowski · January 12, 2024

Organ Accompaniment Booklet (25 pages)

Those who celebrate VESPERS each week may wish to download my organ accompaniment booklet (25 pages) for the 2nd Sunday after Epiphany. This was originally released about a year ago (link), but minor improvements have been made.

Corpus Christi Watershed · January 10, 2024

Released • Jeff Ostrowski’s Seminar: “Secrets of the Conscientious Choirmaster” (9+ hours)

Mr. Ostrowski created this seminar based on lectures, masterclasses, and tutorials he’s presented at the Sacred Music Symposium over the last decade.

Jeff Ostrowski · January 8, 2024

PDF Download • Msgr. Hellriegel’s “Hand-Written” Hymnal (Organ Accompaniment) — 102 pages

A major announcement on 8 January 2024!

Jeff Ostrowski · December 30, 2023

Christmas • “Approached By A Famous Musicologist”

If you’re somebody who likes grandiloquence, you’ll prefer the description by Dr. Ellis.

Jeff Ostrowski · December 22, 2023

“Not Schmaltzy” • An Ancient Christmas Hymn

Sharing one’s opinions candidly is a quick way to make lifelong enemies.

Jeff Ostrowski · December 16, 2023

Our Most Popular Download Ever? • (Advent Hymn)

The more I argued, the more Kenneth insisted that none of my objections were valid…

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Jeff Ostrowski · December 12, 2023

PDF Download • “Münster Hymnal” (Harmony Edition) — 123 pages!

“As the organ plays, so does the congregation sing!” —From the Foreword

Jeff Ostrowski · December 6, 2023

(Advent, 2nd Sunday) • Introit “Pópulus Sion” Sung According to the Official Rhythm

We can hardly do better than to join in the same melodies sung by Catholic saints throughout history.

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Corpus Christi Watershed

President’s Corner

    Responsorial Psalm Fauxbourdon?
    When it comes to singing Responsorial Psalms in Fauxbourdon, what does this sound like in practice? Can such a thing be done successfully with volunteer choirs in real Catholic parishes? Listen to this audio excerpt from Good Friday and see what you think. Our parish volunteer choir did so well this year—and the ceremonies were ‘standing room only’. For the record, that musical score can be downloaded (completely free of charge) from the flourishing feasts website.
    —Jeff Ostrowski
    Music List • (Easter Sunday, 2026)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for Easter Sunday—a.k.a. “Ad Missam in die Paschae”—which is 5 April 2026. Please feel free to download it as a PDF file if such a thing interests you. The Fauxbourdon for Communion is particularly moving.
    —Jeff Ostrowski
    PDF Download • “Sprinkling Rite”
    Liturgical reformers who gained power after Vatican II frequently caused great suffering to musicians. With the stroke of a pen, they sometimes make changes that would require thousands—or even millions—of man hours (work undertaken by composers and editors). The Sprinkling Rite during Eastertide is but one tiny example. The version given in that PDF document was the original melody for Roman Missal, Third Edition. Some still prefer that version. However, at the last moment, an “unknown hand” tinkered with a few notes in the antiphon. Those who examine the current edition can verify this with their own eyes.
    —Jeff Ostrowski

Quick Thoughts

    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski
    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
    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

“As liturgical art, church music is obliged to conform to ecclesiastical law. But to construct artificial polarities here, between legalistic order and a dynamic church music, demanded by the alleged needs of the day, would be to forsake the foundation of a music rooted in liturgical experience. What is in fact the pastoral value of the shoddy, the profane, the third-rate?”

— Dr. Robert Skeris (1996)

Recent Posts

  • Responsorial Psalm Fauxbourdon?
  • Music List • (Easter Sunday, 2026)
  • PDF Download • “Sprinkling Rite”
  • ‘Sarum’ Good Friday?
  • Gregorian Chant • The “Correct” Way of Singing ?

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