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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 · March 27, 2018

PDF Download • Organ Accompaniment for “Vexilla Regis” (Hymn) by Fr. Adrian Fortescue

When I saw this page, my opinion of Fortescue went down—but then I remembered…

Jeff Ostrowski · March 6, 2018

PDF Download • Rare German Hymnal (879 pages)

Most German hymnals we’ve come across contain words only—but this one has harmonies!

Jeff Ostrowski · January 28, 2018

PDF Download • “Agnus Dei” … for Lent

…including rehearsal videos for each individual voice!

Jeff Ostrowski · January 22, 2018

PDF Download • Dom Pothier Biography (1947)

“Dom Pothier himself acted as an illustrator, decorating his work with vignettes, illuminated capitals, tailpieces, even full-page illustrations representing the mysteries of the Annunciation and Christmas.”

Jeff Ostrowski · January 11, 2018

PDF Download • Easy Hymn with Melody in Tenor

The Brébeuf hymnal contains carefully chosen and flexible melodies; do you see how the following tune (“Old Hundredth”) can be used in the Tenor voice?

Jeff Ostrowski · January 8, 2018

PDF Download • Anglican Hymnal (1,151 pages)

I bet you’ve not seen this fascinating book! • Many pieces in this Anglican collection are actually translations of Roman Catholic hymns, such as Ave Maris Stella, Audi Benigne Conditor, Ad Regias Agni Dapes, and so forth • Readers will mainly be interested in sections 3 and 4 • The “Englished” versions of the propers (e.g. Puer Natus Est) are quite interesting+

Jeff Ostrowski · January 4, 2018

PDF Download • Best Hymnal Ever Printed?

If you like this, stay tuned—I’ll soon release a 1,200 page treasure!

Jeff Ostrowski · December 18, 2017

PDF Download • Kyrie “O Magnum Mysterium”

This morning, I recorded the voice parts—but please pardon my screechy soprano notes!

Jeff Ostrowski · December 13, 2017

PDF Download • “Rorate Mass” (13 pages) —Dec 2017

“Let us not be cast into the darkness to burn in flames, but may we share the joy of heaven, seeing the face of God.”

Jeff Ostrowski · December 8, 2017

PDF Download • Immac. Conception Booklet

“He whom the whole world cannot contain was enclosed in thy womb…”

Jeff Ostrowski · November 29, 2017

PDF Download • “How To Serve Mass” (1651)

“Pausing a little, arise, make Adoration to the Sacrament, give the Pax to those present, observe Order of calling, and Years…”

Jeff Ostrowski · November 25, 2017

PDF Download • “Evening Masses and Days of Obligation” (58 pages)

Permission has been given to post this marvelous 2016 dissertation by Fr. Shawn Tunink.

Jeff Ostrowski · November 20, 2017

PDF Download • Authentic Irish Hymnal (164 pages)

Imagine the amount of time required to typeset something like this!

Jeff Ostrowski · November 2, 2017

PDF Download • All Souls Day

Here’s the booklet we used for All Souls (2 November).

Jeff Ostrowski · October 29, 2017

PDF Download • Congregational “Dies Irae”

…including two reasons I believe a liturgical reform was desired in the 1960s.

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Corpus Christi Watershed

President’s Corner

    PDF • “Music List” (4th Sunday of Advent)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for 21 December 2025, which is the 4th Sunday of Advent (Year A). If such a thing interests you, feel free to download it as a PDF file. The ENTRANCE CHANT is the famous “Roráte Coeli” and the fauxbourdon setting of the COMMUNION is exquisite. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    PDF • Our Lady of Guadalupe (12 Dec.)
    The Responsorial Psalm may be downloaded as a PDF file (organist & vocalist) for 12 December, which is the Feast of Our Lady of Guadalupe. When it comes to the formulary for this Mass, it’s astounding how infrequently it’s included in official books. Prior to Vatican II, one had to search through “supplemental material” printed in the back of hand-missals and graduals. But since 1970, the feast is virtually nonexistent. According to the UNIVERSAL KALENDAR, 12 December is the “Feast of Saint Jane Frances De Chantal, Religious” (Die 12 decembris: S. Ioannæ Franciscæ de Chantal, religiosæ). Why should that feast overpower Our Lady of Guadalupe? In the United States, OLG is celebrated—and I’d assume in Mexico, Central America, South America, and Canada—but, as I said, the Propria Missae are virtually impossible to locate. I possess only three books which mention this feast.
    —Jeff Ostrowski
    Simplified Accompaniment (Advent Hymn)
    Many organists are forced to simultaneously serve as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult. I invite you to download this simplified organ accompaniment (PDF) which in the Father Brébeuf Hymnal is hymn #661: “Come, Thou Long-Expected Jesus” (for ADVENT). I’m toying with the idea of creating a whole bunch of these, to help amateur organists. The last one I uploaded was downloaded more than 2,900 times in a matter of hours—so there appears to be interest.
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Santo Santo Santo”
    Those searching for a dignified, brief, simple, bright setting of SANCTUS in Spanish (“Santo Santo Santo”) are invited to download this Setting in honor of Saint John Brébeuf (organist & vocalist). I wonder if there would be any interest in me recording a rehearsal video for this piece.
    —Jeff Ostrowski
    Pope Leo XIV on Sacred Music
    On 5 December 2025, Pope Leo XIV made this declaration with regard to liturgical music.
    —Corpus Christi Watershed
    “Translations Approved for Liturgical Use”
    According to the newsletter for USSCB’s Committee on Divine Worship dated September 1996, there are three (3) translations of the Bible which can be used in the sacred liturgy in the United States. You can read this information with your own eyes. It seems the USCCB and also Rome fully approved the so-called NRSV (“New Revised Standard Version”) on 13 November 1991 and 6 April 1992 but this permission was then withdrawn in 1994.
    —Corpus Christi Watershed

Random Quote

“The cemeteries are full of people who thought they were indispensable.”

— Fr. Alan Heet, OFM

Recent Posts

  • The “Word of the Father” Chord: Theology and Harmony Meet at Christmas
  • PDF • “Music List” (4th Sunday of Advent)
  • PDF Download • “Santo Santo Santo”
  • Crucial Tips • “Teaching Children How to Sing”
  • Soloists in Gregorian Chant?

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