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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

Articles

Andrew Leung · December 31, 2015

Te Deum Laudámus

Listen to Herbert Howells’s Te Deum to start the new year!

Jeff Ostrowski · December 30, 2015

Which Mass Goes With Which Season?

Unfortunately, many ignore the words of Abbot Pothier, included at the front of the Vatican Edition.

Andrew Leung · December 30, 2015

Bishop Perry at Prince of Peace Catholic Church

Bishop Joseph Perry administered the Sacrament of Confirmation and celebrated a Pontifical Solemn High Mass on Gaudete Sunday.

Jeff Ostrowski · December 30, 2015

Another “Oops” Moment For Liturgical Press

Msgr. Kevin Irwin says this book “reflects the best of liturgical scholarship and wisdom gleaned from the liturgy.”

Cynthia Ostrowski · December 29, 2015

Popular Posts From 2015

In case you missed any of these!

Jeff Ostrowski · December 29, 2015

PDF • “The Truth Of Papal Claims” (Merry del Val)

Cardinal Raphael Merry del Val published this reply to a Protestant scholar in 1902.

Jeff Ostrowski · December 28, 2015

A Myth That Needs To Die

“I never witnessed a Mass in the so-called Extraordinary Form that was done in 15 minutes.”

Jeff Ostrowski · December 28, 2015

Hollywood: Midnight Mass By Candlelight

The FSSP had a special Christmas Mass at their new Apostolate in Los Angeles.

Andrew Leung · December 26, 2015

New Choir Stalls for the Sistine Chapel Choir

The Sistine Chapel Choir sang beautifully at the Midnight Mass at St. Peter’s Basilica.

Richard J. Clark · December 25, 2015

Christmas and the Universal Role of Music

The birth of Christ recalls a specific time and place as does the music of Christmas. It is sacred music that has poured out into an increasingly secular world.

Jeff Ostrowski · December 24, 2015

Musical Resources • Christmas Midnight Mass (Extraordinary Form)

We won’t be singing “Frosty The Snowman” for Offertory!

Andrew Leung · December 22, 2015

Video • Holy Mass in Hollywood, 1944

A video of the Christmas Solemn High Mass in Hollywood film, “Christmas Holiday”

Andrew Leung · December 21, 2015

Sing Like the Angels

We can learn from the best choir, the Holy Angels!

Fr. David Friel · December 20, 2015

Pope Francis on Collaboration of the Lay Faithful

Remarks during the Ad Limina Visit of the German Bishops

Veronica Brandt · December 19, 2015

Epiphany Proclamation

It is solemnly made known, dearest brethren that, just as we through the bounteous mercy of God, have rejoiced in the Birth of Our Lord Jesus Christ, likewise should we proclaim the joy of the Resurrection of this same Saviour.

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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

“Let the candle upon the reed be lighted, and let another candle be lighted at the same time, so that the candle upon the reed can be rekindled if it should chance to be blown out.”

— MS circa 1210 A.D. describing the Holy Saturday ‘Trident’

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)

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