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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

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Corpus Christi Watershed · November 6, 2013

Jesuit Martyrs of North America by John A. O’Brien

A free PDF download of this entire book is provided, courtesy of the St. Jean de Lalande Library of Rare Books.

Richard J. Clark · July 5, 2013

Ascent to Freedom

True freedom does not rise from the capacity to fulfill all desires. Freedom is captivity, followed by battle, followed by faith, followed by wisdom and compassion as seen through the eyes of love. Of this struggle, true liberation is born.

Corpus Christi Watershed · June 28, 2013

Henri Potiron Organist Vesperale (PDF Download)

Henri Potiron’s 1935 organ accompaniments for Vespers (270 pages) for free download!

Jeff Ostrowski · June 3, 2013

Free Musical Scores For Catholic Weddings

Nuptial Mass Responsorial Psalms, Gospel Acclamations, Introits, Offertories, simple organ interludes, training videos, PDF scores, and more . . . all for free!

Guest Author · May 13, 2013

New Collection Of Ancient Books About The Mass . . . Free!

Incarnation Catholic Church in Tampa, has begun an initiative to build an E-Library dedicated to building a library of out-of-print books about the Traditional Latin Mass.

Richard J. Clark · May 10, 2013

English Setting of Pentecost Sequence | Free Download

VENI, SANCTE SPIRITUS, the Sequence for Pentecost Sunday is one of the great jewels of the Roman Rite. The text alone is a treasure—short, simple, profound, and transcendent.

Jeff Ostrowski · April 23, 2013

Introducing the Lalemant Propers (391 Pages) — Free Download !

The Lalemant Propers are extremely simple settings (in English) of the Mass Propers which make it possible for any person to sing these sacred prayers . . . even people who have no musical training whatsoever.

Corpus Christi Watershed · March 21, 2013

Good Friday Passion In Parts – Free PDF Booklet

This beautiful PDF was created by Jim & Claire Ridley.

Richard J. Clark · March 20, 2013

Free Communion Propers for the Easter Season, Year C

Free download of Communion Propers for the Easter Season, Year C

Corpus Christi Watershed · March 19, 2013

1892 Pustet Rituale (Fragment)

A free PDF download of this entire book is provided, courtesy of the St. Jean de Lalande Library of Rare Books.

Corpus Christi Watershed · March 19, 2013

1910 The Art of Accompanying Plain Chant

A free PDF download of this entire book is provided, courtesy of the St. Jean de Lalande Library of Rare Books.

Corpus Christi Watershed · March 19, 2013

1933 Gregorian Accompaniment Treatise (Potiron)

A free PDF download of this entire book is provided, courtesy of the St. Jean de Lalande Library of Rare Books.

Corpus Christi Watershed · March 19, 2013

1905 Solesmes Rituale (Fragment)

A free PDF download of this entire book is provided, courtesy of the St. Jean de Lalande Library of Rare Books.

Corpus Christi Watershed · March 19, 2013

1957 Organ Accompaniments for the Kyriale (Polish)

A free PDF download of this entire book is provided, courtesy of the St. Jean de Lalande Library of Rare Books.

Corpus Christi Watershed · March 19, 2013

1952 The Rhythmic Tradition in the Manuscripts

A free PDF download of this entire book is provided, courtesy of the St. Jean de Lalande Library of Rare Books.

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Corpus Christi Watershed

President’s Corner

    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski
    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

Quick Thoughts

    PDF Download • “In Paradisum” in English
    We always sing the IN PARADISUM in Latin, as printed on this PDF score. I have an appallingly bad memory (meaning I’d be a horrible witness in court). In any event, it’s been brought to my attention that 15 years ago I created this organ accompaniment for the famous and beautiful ‘IN PARADISUM’ Gregorian chant sung in English according to ‘MR3’ (Roman Missal, Third Edition). If anyone desires such a thing, feel free to download and print. Looking back, I wish I’d brought the TENOR and BASS voices into a unison (on B-Natural) for the word “welcome” on the second line.
    —Jeff Ostrowski
    What does this mean? “Pre-Urbanite”
    Something informed critics have frequently praised vis-à-vis the Saint Jean de Brébeuf Hymnal is 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

Random Quote

“We must strip from our Catholic prayers and from the Catholic liturgy everything which can be the shadow of a stumbling block for our separated brethren—that is, for the Protestants.”

— Monsignor Annibale Bugnini (March, 1965) in L’Osservatore Romano

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  • PDF Download • “In Paradisum” in English

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