• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

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.”

  • Donate
  • Our Team
    • Our Editorial Policy
    • Who We Are
    • How To Contact Us
    • Sainte Marie Bulletin Articles
    • Jeff’s Mom Joins Fundraiser
    • “Let the Choir Have a Voice” (Essay)
  • Pew Resources
    • Brébeuf Catholic Hymnal
    • Jogues Illuminated Missal
    • Repository • “Spanish Music”
    • KYRIALE • Saint Antoine Daniel
    • Campion Missal, 3rd Edition
  • MUSICAL WEBSITES
    • René Goupil Gregorian Chant
    • Noël Chabanel Psalms
    • Nova Organi Harmonia (2,279 pages)
    • Roman Missal, 3rd Edition
    • Catechism of Gregorian Rhythm
    • Father Enemond Massé Manuscripts
    • Lalemant Polyphonic
    • Feasts Website
  • Miscellaneous
    • Site Map
    • Secrets of the Conscientious Choirmaster
    • “Wedding March” for lazy organists
    • Emporium Kevin Allen
    • Saint Jean de Lalande Library
    • Sacred Music Symposium 2023
    • The Eight Gregorian Modes
    • Gradual by Pothier’s Protégé
    • Seven (7) Considerations
Views from the Choir Loft

Articles

St. Edmund Campion Missal and Hymnal · July 1, 2013

What’s New In The Second Edition?

The St. Edmund Campion Missal & Hymnal is a pew book (992 pages long) for the Traditional Latin Mass.

Corpus Christi Watershed · July 1, 2013

07 • Lalemant Conversations: Sequoia Sierra

What does a young stylist from L.A. think about the Mass Propers?

Corpus Christi Watershed · July 1, 2013

1989 Preface to the Douay-Rheims Bible

St. Jerome had access to ancient Hebrew and Greek manuscripts of the 2nd and 3rd centuries which have since perished and are no longer available to scholars today.

St. Edmund Campion Missal and Hymnal · July 1, 2013

Organ Accompaniments for the Campion Hymnal

The St. Edmund Campion Missal & Hymnal is a pew book (992 pages long) for the Traditional Latin Mass.

Fr. David Friel · June 30, 2013

Basilica Music Academy

A New Venture

Veronica Brandt · June 29, 2013

Of Singers and Drawers

Can’t sing, can’t draw, can type a little.

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!

Richard J. Clark · June 28, 2013

Begin From the Beginning—Interesting Things Will Happen

I have not even begun to speak of music at liturgy, music worthy of praising the God who loves us to the point of death on a cross. Where will this understanding lead us in our sacred music? Interesting things happen in our lives when we worship God.

Dr. Peter Kwasniewski · June 27, 2013

The Spirit of Solesmes

The unification of our lives, the orientation to the ultimate goal that gives meaning to every proximate and particular goal we seek, is the work of the sacred liturgy.

Jeff Ostrowski · June 26, 2013

Video Demonstration Of Polyphony

I hope you enjoy this SATB version of the St. Edmund Arrowsmith Mass, a simple musical setting for “MR3” (Roman Missal, 3rd Edition).

Corpus Christi Watershed · June 26, 2013

Did you know Lasso suffered from depression?

Lassus (†1594) was a celebrity musician in his day, and at least 2,000 of his masses, canticles, motets and hymns have survived. He was also bipolar, then called “melancholia hypochondriaca.”

Jeff Ostrowski · June 26, 2013

Gregorian Missal With The New Translation!

Can anyone help me understand this sentence in the Foreword?

Cynthia Ostrowski · June 25, 2013

Catholic Line Art, Black and White • Installment #22

I will be releasing hundreds of these B/W religious line art drawings for free and instant download. These beautiful Catholic “woodcuts” were done with magnificent skill. “Download Free Traditional Catholic Clipart”

Jeff Ostrowski · June 24, 2013

The Gather Hymnal

Excuse me, but . . . Say what? “If Christ entered the room, we’d be on our feet in an instant. We would not kneel.”

Jeff Ostrowski · June 23, 2013

Two (2) Errors In Printed Chabanel Book

There have been several errors found in the Chabanel Psalms Vocalist Book.

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 296
  • Page 297
  • Page 298
  • Page 299
  • Page 300
  • Interim pages omitted …
  • Page 337
  • Go to Next Page »

Primary Sidebar

Corpus Christi Watershed

President’s Corner

    “Reminder” — Month of April (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    Simplified Accompaniment (Easter Hymn)
    Number 36 in the Brébeuf Hymnal is “At the Lamb’s high feast we sing,” an English translation for Ad Cenam Agni Próvidi (which was called “Ad Régias Agni Dapes” starting 1631). As of this morning, you can download a simplified keyboard accompaniment for it. Simply click here and scroll to the bottom. Many organists are forced to serve simultaneously as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult—which explains why choirmasters appreciate these simplified keyboard accompaniments. Sadly, many readers will click that link but forget to scroll to the bottom where the simplified PDF file is located.
    —Jeff Ostrowski
    PDF Download • “Quasi Modo Sunday”
    The Introit for “Quasi Modo Sunday” (12 April 2026) is particularly beautiful. The musical score can be downloaded as a PDF file, and so can the organ accompaniment. The official language of the Catholic Church is Latin (whereas Greek is our mother tongue). Vatican II said Gregorian Chant must be given “first place” under normal circumstances. As a result, some parishes will rightly sing the authentic version. On the other hand, because so many USA dioceses disobey the mandate of Vatican II, some musicians sing plainsong in the vernacular. I have attempted to simultaneously accompany myself on the pipe organ while singing the English version. Although very few take advantage of it, the complete Proprium Missae is posted at the flourishing feasts website.
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski

Random Quote

“Eucharistic Prayer II, on account of its particular features, is more appropriately used on weekdays or in special circumstances.”

— §365 from the “General Instruction for the Roman Missal”

Recent Posts

  • “Reminder” — Month of April (2026)
  • “Gregorian Chant Isn’t a Platform for Your Personal Theories, Jeff” • (A Letter We Received)
  • Request From Australia
  • PDF Download • “Anima Christi”
  • PDF Download • “Rarer Than a Blue Moon” — Side-by-Side English Translation (Pius XII Psalter)

Subscribe

Subscribe

* indicates required

Copyright © 2026 Corpus Christi Watershed · Isaac Jogues on Genesis Framework · WordPress · Log in

Corpus Christi Watershed is a 501(c)3 public charity dedicated to exploring and embodying as our calling the relationship of religion, culture, and the arts. This non-profit organization employs the creative media in service of theology, the Church, and Christian culture for the enrichment and enjoyment of the public.