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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

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 · August 19, 2015

Musical Resources • 13th Sunday after Pentecost (Extraordinary Form)

“We have received, O Lord, thy heavenly sacrament…”

Jeff Ostrowski · August 18, 2015

Improve Your Parish’s Liturgy … Instantaneously!

“Until we are blue in the face, we could repeat what Vatican II said about Gregorian chant…”

Jeff Ostrowski · August 17, 2015

PDF Download • “Mount Mary Hymnal” (1937)

All 255 pages of this famous hymn book can now be downloaded as a PDF.

Jeff Ostrowski · August 13, 2015

Musical Resources • 12th Sunday after Pentecost (Extraordinary Form)

The “Testament of the Spirit” is the new and permanent covenant established by Jesus Christ between God and men.

Jeff Ostrowski · August 12, 2015

Cardinal Sarah’s Powerful Letter Available In English!

“Adoremus Bulletin” has uploaded a translation of the CDW Prefect’s document.

Jeff Ostrowski · August 11, 2015

Remarkable! • Amiens Cathedral During World War

There’s something scary about this image!

Jeff Ostrowski · August 11, 2015

Evelyn Waugh Requiem Panegyric Preached At Westminster By Fr. Caraman (21 April 1966)

“Evelyn was sad when he read of churches in which the old altar was taken down…”

Jeff Ostrowski · August 10, 2015

Carlo Rossini: “Exaltate Deum Hymnal” (1941)

115 Offertories, Motets, and Hymns for SATB choirs.

Jeff Ostrowski · August 9, 2015

Do You Like This German Hymn Tune?

Hymns in 3/4 can present problems, but this one really isn’t…

Jeff Ostrowski · August 7, 2015

Propers for the Assumption (15 August)

Videos, Scores, & Mp3 Files

Jeff Ostrowski · August 6, 2015

Pope Paul VI Celebrates Ambrosian Rite At Vatican II

Cardinal Montini—later known as Pope Paul VI—celebrates Mass in the St. Peter’s Basilica during Vatican II.

Jeff Ostrowski · August 5, 2015

Musical Resources • 11th Sunday after Pentecost (Extraordinary Form)

The Verdelot “Agnus Dei” gets better and better the more we explore its treasures.

Jeff Ostrowski · August 5, 2015

Help Needed From Organists Who Can Improvise!

Are you a composer?

Jeff Ostrowski · August 4, 2015

Why St. Josemaría Escrivá Only Celebrated The Extraordinary Form

“Such moments had been a part of his spiritual life since boyhood and through his priesthood.”

Jeff Ostrowski · August 4, 2015

The Easiest Way To Teach Your Choir Polyphony

What could be simpler or more fun than this?

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Corpus Christi Watershed

President’s Corner

    PDF • “Music List” (Sunday, 28 December)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for Feast of the Holy Family of Jesus, Mary, & Joseph (28 Dec. 2025). If such a thing interests you, feel free to download it as a PDF file. The FAUXBOURDON verses for the Communion Antiphon are particularly gorgeous. 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 • “Music List” (Xmas Midnight Mass)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for Christmas Midnight Mass (“Ad Missam In Nocte”). If such a thing interests you, feel free to download it as a PDF file. The ENTRANCE CHANT is simple, but quite beautiful. 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 • “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

Quick Thoughts

    What does this mean? “Pre-Urbanite”
    One of the things informed critics have frequently praised vis-à-vis the Saint Jean de Brébeuf Hymnal has to do with its careful treatment of the ancient hymns vs. the “Urbanite” hymns. This topic I had believed to be fairly well understood—but I was wrong. The reason I thought people knew about it is simple; in the EDITIO VATICANA 1908 Graduale Romanum (as well as the 1913 Liber Antiphonarius) both versions are provided, right next to each other. You can see what I mean by examining this PDF file from the Roman Gradual of 1908. Most people still don’t understand that the Urbanite versions were never adopted by any priests or monks who sang the Divine Office each day. Switching would have required a massive amount of effort and money, because all the books would need to be changed.
    —Jeff Ostrowski
    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

Random Quote

“If he converses with the learned and judicious, he delights in their talent—if with the ignorant and foolish, he enjoys their stupidity. He is not even offended by professional jesters. With a wonderful dexterity he accommodates himself to every disposition. As a rule, in talking with women (even with his own wife) he is full of jokes and banter.”

— ‘Erasmus on St. Thomas More (England’s 1st lay Chancellor)’

Recent Posts

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  • PDF • “Music List” (Sunday, 28 December)
  • Should Catholics Sing Protestant Christmas Carols?
  • PDF • “Music List” (Xmas Midnight Mass)
  • What does this mean? “Pre-Urbanite”

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