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Corpus Christi Watershed

“What earlier generations held as sacred, remains sacred and great for us too…” Pope Benedict XVI (7 July 2007)

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

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


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

Score with Assembly inserts: PDF (8 pages)


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

Score with Assembly inserts: PDF (7 pages)


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 — Kwasniewski   •   Practice Videos: Click here


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


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

Quick Thoughts

Alabama Assessment!

We received this evaluation of Symposium 2022 from an Alabama participant:

“Oh, how the Symposium echoed the words of Cardinal Merry Del Val: …choosing only what is most conformed to Thy glory, which is my final aim. In one short and fast paced week, the faculty and attendees showed me the hand of God and our Lady working in our lives. The wide range of education—from Gregorian Chant, jazz modes in organ improvisation, to ‘staying sane’ while leading a choir—were certainly first-class knowledge from the best teachers of the art. However, the most powerful lesson was learning how to pray as a choir. The sacrifice of putting songs together, taking time to learn the sacred text, meditating on the church teaching through the chants, and gaining the virtues required to persevere in these duties were not only qualities of a choir but of a saint. The sanctification of the lives of the attendees was a beautiful outcome of this event … and that in itself is worth more than a beautifully-sung Solesmes style chant!”

—Jeff Ostrowski
PDF Download • Trinity Sunday (22 pages)

Feel free to download this Organ Accompaniment Booklet for Trinity Sunday (Second Vespers). Notice how the modes progress by number. Psalm 1 is mode 1; Psalm 2 is mode 2; Psalm 3 is mode 3; Psalm 4 is mode 4; Psalm 5 is mode 5. I am told by an expert that other feasts (such as Corpus Christi) are likewise organized by mode, and it’s called a “numerical office.”

—Jeff Ostrowski
10 June 2022 • “Official” rhythm of plainsong

I continue to search for the most beautiful way to present the “pure” Editio Vaticana scores. (Technically, the “pure” rhythm of the official edition is what everyone is supposed to use.) You can download my latest attempt, which is the Introit for this coming Sunday: Feast of the Most Holy Trinity. Because this is not an ancient feast, the Introit had to be adapted (perhaps around 750AD). Prior Johner says the adaptation is “not an entirely happy one.”

—Jeff Ostrowski

Random Quote

“In case of urgent danger of life anyone may baptize, even a heretic or pagan. It is sufficient that he administer the essential matter and form and have the implicit intention of doing what Christ instituted. Naturally a Catholic must be preferred, if possible. A man is preferred to a woman; but anyone else to the parents.”

— Father Adrian Fortescue (1917)

Recent Posts

  • Alabama Assessment!
  • “How Has Nobody Done This Before?” • Vol. 1
  • “Exceeded Every Expectation!” • Mr. O’Brien’s Review
  • “81 Photos” • Sacred Music Symposium 2022
  • Photograph • Dom André Mocquereau (d. 1930)

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