• 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

PDF Download

Jeff Ostrowski · July 12, 2022

PDF Download • “Sunday Vespers” (22 pages)

In spite of its imperfections, creating this (draft) booklet required much more effort than I had anticipated.

Jeff Ostrowski · June 14, 2022

“Stowe Missal Eucharistic Motets” • For 3 Voices

This melody won’t leave your head—it keeps playing “on repeat.”

Jeff Ostrowski · May 26, 2022

PDF Download • “Spanish TLM Missal” (2,288 pages)

A french version (1,798 pages) is also available for free PDF download.

Jeff Ostrowski · May 21, 2022

PDF Download • “A Canon Choirs Love!”

You will notice Father Guerrero takes the chant melody (“Beata Mater”) and creates a perfect canon between Soprano and Alto.

Jeff Ostrowski · May 17, 2022

PDF Download • 2022 “Vespers Booklet” (99 Pages)

If you spot typos, please let us know!

Jeff Ostrowski · April 18, 2022

{ Next Year! } • Somber Kyrie Settings For Lent

Corpus Christi Watershed has provided rehearsal videos to assist choir members who do not read music well.

Jeff Ostrowski · April 11, 2022

PDF Download • SATB “Refrain” for Good Friday

Is it “traditional” to receive Holy Communion on Good Friday?

Andrea Leal · April 6, 2022

PDF Download • “Regina Caeli for 3 Voices”

I never shared this before because pride and perfectionism held me back.

Jeff Ostrowski · April 6, 2022

“Victimæ Paschali Laudes” • Nineteen (19) Organ Accompaniments

Including a remarkable musical setting by Father Adrian Fortescue (d. 1923).

Jeff Ostrowski · March 15, 2022

“Three Hymns for Lent” • (Rec. 03/10/2022)

Sometimes what goes without saying must be said.

Jeff Ostrowski · March 9, 2022

PDF • “Hymn Suggestions For Each Sunday”

The conscientious choirmaster takes people where they are and then—carefully and prudently—leads them to something higher.

Jeff Ostrowski · February 4, 2022

Seriously? • Bishop of Lexington Insists the Dominican Rite Never Existed (!)

These problematic assertions by Bishop Stowe will have to be withdrawn at some point.

Follow the Discussion on Facebook

Jeff Ostrowski · February 1, 2022

“Sample Pages” • Campion Missal (2022 edition)

Sophia Institute Press has made a huge announcement regarding the 3rd edition.

Jeff Ostrowski · January 6, 2022

PDF Download • “Feast of the Holy Name” (Vespers Organ Accompaniment)

Only fellow choirmasters know how much work choirmasters do “behind the scenes.”

Jeff Ostrowski · December 15, 2021

PDF Download • Carol based on “The First Nowell”

I recorded all the voices, to demonstrate how it sounds…

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 37
  • Page 38
  • Page 39
  • Page 40
  • Page 41
  • Interim pages omitted …
  • Page 57
  • Go to Next Page »

Primary Sidebar

Corpus Christi Watershed

President’s Corner

    Simplified Accomp. • Schubert’s “Ave Maria.”
    Sometimes the organist must simultaneously serve as the CANTOR. (Those who work in the field of church music know exactly what I’m talking about.) One of our contributors composed this simplified keyboard accompaniment for Franz Schubert’s “Ave Maria,” a piece which is frequently requested for Catholic funerals and weddings. In terms of the discussion about whether that piece is too theatrical (‘operatic’) for use in Church, I will leave that discussion to others. All I know is, many church musicians out there will appreciate this simplified version.
    —Jeff Ostrowski
    “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

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

“The Night Office—Nocturns or Matins—except for Holy Week, Easter Octave, and Christmas, has never appeared in the Vatican edition. The larger part of the mediaeval repertory for the Office thus remains still unpublished in the Vatican edition, and is likely to remain so, for the obvious reason that almost no cathedral chapters or monastic choirs sing the Night Office regularly today.”

— John Merle Boe (1968)

Recent Posts

  • Every Artist Needs a Refuge
  • Simplified Accomp. • Schubert’s “Ave Maria.”
  • “The Unselected Hymn” • Do You Recognize It?
  • 2026 Sacred Music Pilgrimage (Washington DC) • With Richard J. Clark
  • “Reminder” — Month of April (2026)

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.