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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 · December 4, 2013

1934 “Antiphonale Monasticum” (Solesmes Abbey) • Free PDF Download!

Feel free to download all 1,296 pages!

Jeff Ostrowski · November 15, 2013

A Dream Come True: 1965 Missal Online!

“The Conference of Bishops has given permission that, when a qualified man is not
available, a woman may proclaim the readings prior to the gospel, while standing outside the sanctuary.” — 1970 Statement

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

1913 Gastoué Treatise on Gregorian 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

1900 (?) Lepage Gregorian Accompaniment Treatise

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

Modal Accompaniment of Gregorian 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

1937 Fr. Lasance Missal (PDF)

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 Download • “Ubi Caritas” (SATB)
    I remember singing “Ubi Cáritas” by Maurice Duruflé at the conservatory. I was deeply moved by it. However, some feel Duruflé’s version isn’t suitable for small choirs since it’s written for 6 voices and the bass tessitura is quite low. That’s why I was absolutely thrilled to discover this “Ubi cáritas” (SATB) for smaller choirs by Énemond Moreau, who studied with OSCAR DEPUYDT (d. 1925), an orphan who became a towering figure of Catholic music. Depuydt’s students include: Flor Peeters (d. 1986); Monsignor Jules Van Nuffel (d. 1953); Arthur Meulemans (d. 1966); Monsignor Jules Vyverman (d. 1989); and Gustaaf Nees (d. 1965). Rehearsal videos for each individual voice await you at #19705. When I came across the astonishing English translation for “Ubi Cáritas” by Monsignor Ronald Knox—matching the Latin’s meter—I decided to add those lyrics as an option (for churches which have banned Latin). My wife and I made this recording to give you some idea how it sounds.
    —Jeff Ostrowski
    PDF • “Cantus Mariales” (192 pages)
    Andrea Leal has posted an absolutely pristine scan of CANTUS MARIALES (192 pages) which can be downloaded as a PDF file. To access this treasure, navigate to the frabjous article Andrea posted Monday. The file is being offered completely free of charge. The beginning pages of the book have something not to be missed: viz. a letter from Pope Saint Pius X to Dom Pothier, in which the pope calls Abbat Pothier “a man versed above all others in the science of liturgy, and to whom the cause of Gregorian chant is greatly indebted.”
    —Jeff Ostrowski
    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

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

“I ask that future priests, from their time in the seminary, receive the preparation needed to understand and to celebrate Mass in Latin, and also to use Latin texts and execute Gregorian chant; nor should we forget that the faithful can be taught to recite the more common prayers in Latin, and also to sing parts of the liturgy to Gregorian chant.”

— SACRAMENTUM CARITATIS

Recent Posts

  • PDF Download • “Ubi Caritas” (SATB)
  • PDF • “Cantus Mariales” (192 pages)
  • PDF Download • Fourteen (14) Versions of the Splendid Hymn: “Salve Mater Misericordiae”
  • Fulton J. Sheen • “24-Hour Catechism”
  • Music List • (2nd Sunday of Lent)

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