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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

Free Musical Settings • Roman Missal, 3rd Edition

HE ST. RALPH SHERWIN GLORIA is a remarkably prayerful musical setting of the text that is sure to serve our worship for years to come—well worth the investment of time to teach your parish community. — Gregory Glenn, Cathedral of the Madeleine

Mass in Honor of Saint Noël Chabanel (2023)
Jeffrey Ostrowski, Composer

Download the complete Mass for free

Mass in honor of St. Isaac Jogues (2014)
Congregational Mass printed in the Jogues Illuminated Missal

Scores: Organist — Congregation — SATB   •   Videos: Click here

*  PDF Download • “Mass of the English Martyrs” (Ostrowski)
—Includes a choral setting of the “Our Father” (SATB).


Mass in Honor of Pope Saint John Paul II (2014)
Richard J. Clark, Composer

Accompaniment: PDF (29 pages)   •   Practice Videos: Click here


Mass in honor of Mary, Star of the Sea (2013)
Michael Olbash, Composer

Accompaniments: Click here   •   Practice Videos: Gloria Video — Sanctus/Preface Video


Mass in honor of St. Ralph Sherwin (2010)
Jeff Ostrowski, Composer

Accompaniments: PDF (17 pages)   •   Practice Videos: Click here


Missa Misericordiae Dei (2017)
Nigel Lucas Silvester McBain

Musical Score: PDF (14 pages)


Mass in honor of St. John Neumann (2011)
Fr. David Friel, Composer

Accompaniment: PDF (21 pages)


Mass of the Alabaster Jar (2016)
Brandon Byrne, Composer

Removed by the composer on 18 January 2025.


Mass in honor of St. Veronica (2016)
Brandon Byrne, Composer

Removed by the composer on 18 January 2025.


Mass in honor of Fr. Solanus Casey (2017)
Composed by Br. Joe Babcock, OFM Cap. and S.V. Guokas

Score with Assembly inserts: PDF (8 pages)


Mass in honor of St. Anne Line (2011)
Jeff Ostrowski, Composer

Accompaniments: Ostrowski   •   Practice Videos: Click here

“Lamb of God” from the
Mass of Saint Anne Line
in 5 different keys.

Congregational Insert • Mass in honor of Saint Anne Line


Mass of the Mediatrix (2011)
Patrick O’Shea, Composer

Full score: PDF (33 pages)   •   Numerous additional resources are here.


Mass in honor of St. Bernadette (2012)
Richard K. Fitzgerald, Composer

Accompaniment: PDF (12 pages)   •   Additional: PDF   •   Audio Files: Click here


Missal Chants (2011, ICEL)
Organ Accompaniments by Jeff Ostrowski

Accompaniments: PDF (21 pages)   •   Practice Videos: Glory to God — Our Father

*  PDF Download • SANCTUS (English, Latin, & Spanish)

The same thing has been done for the AGNUS DEI.

Jeff Ostrowski in 2024 harmonized the KYRIE from them the ICEL Missal chants.


Mass in honor of Our Lady of Good Help (2011)
Aristotle A. Esguerra, Composer

Accompaniment: PDF (5 pages)   •   Practice Video: Holy, Holy, Holy


Mass in honor of Saint Thomas More (2009)
Fr. Samuel F. Weber, Composer

Accompaniment: PDF (15 pages)


Mass in honor of St. Theresa the Little Flower (2013)
Matthew Phelps, Composer

Accompaniment: PDF (25 pages)


Mass of the Sacred Heart (2010)
Richard Rice, Composer

Accompaniment: PDF (12 pages)


Mass in honor of Our Lady of Guadalupe (2011)
Aristotle A. Esguerra, Composer

Accompaniment: Esguerra — Kwasniewski


Mass of St. Theodore (2011)
Richard Rice, Composer

Accompaniment: PDF (20 pages)   •   Practice Videos: Click here


Mass of the Prophets and Martyrs (2011)
L. Columbkille Simms, Composer

Accompaniment: PDF (13 pages)   •   Practice Audio: Click here


Mass in honor of St. Edmund Jennings (2011)
Jeff Ostrowski, Composer

Accompaniment: PDF (7 pages)   •   Practice Videos: Click here


Missa Stelliferi Conditor Orbis (2011)
Kevin Allen, Composer

Accompaniment: PDF (12 pages)


Mass in Honor of St. Raphael — “Glory to God” (2013)
Heather Hineline and Ben Yanke

Accompaniment: PDF (6 pages)


Mass in honor of St. Patrick — “Glory to God” (2012)
William Finn, Composer

Accompaniment: PDF (9 pages)   •   Audio File: Click here


Holy Angels Mass (2010)
Brian Michael Page, Composer

Accompaniment: PDF (11 pages) — Full Score (26 pages)


Mass of St. Therese (2011)
Royce Nickel, Composer

Accompaniment: PDF (9 pages) — PDF (Vocalist)


Mass of Saint Benedict (2011)
Albert Ahlstrom, Composer

Accompaniment: PDF (13 pages)


Mass of the Holy Spirit (2011)
Albert Ahlstrom, Composer

Accompaniment: PDF (24 pages)


Capel-y-ffin Mass (2011)
Ian Williams, Composer

Accompaniment: PDF (9 pages) — PDF (congregation) — PDF (choir)


Mass in honor of St. Edmund Arrowsmith (2010)
Jeff Ostrowski, Composer

Accompaniments: PDF (Higher Key) — PDF (Lower Key)   •   Practice Videos: Click here

Scores & Videos for the SATB Gloria: Click here   •   Congregational: (Melody-Only)

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Corpus Christi Watershed

President’s Corner

    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski
    Which Mass?
    In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    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

Random Quote

A hymn verse need not be a complete sentence, but it must have completed sense as a recognisable part of the complete sentence, and at each major pause there would be at least a “sense-pause.” Saint Ambrose and the early writers and centonists always kept to this rule. This indicates one of the differences between a poem and a hymn, and by this standard most of the modern hymns and the revisions of old hymns in the Breviary stand condemned.

— Fr. Joseph Connelly

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  • Extreme Unction
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  • Which Mass?

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