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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

William Mahrt Gregorian Chant

Andrea Leal · May 28, 2025

“The Adalbert Propers” • Six (6) Quotations

“Fewer than 1% of Catholics are able to answer these questions correctly.” —Andrea Leal

Jeff Ostrowski · January 22, 2025

“Remembering William Mahrt” • My interview with Dr. Horst Buchholz (21 January 2025)

Includes Dr. Buchholz’s obituary for William Mahrt: “A Gentleman, a Scholar, and a Friend”

Fr. David Friel · January 2, 2025

In Memoriam • Dr. William Mahrt

A brilliant and faithful man who had tasted heaven in the chants of the Church

Jeff Ostrowski · November 8, 2021

Missa “My Little Pony” by Dan Schutte • Its Pedigree

A USCCB statement: singing psalms at Mass “may create problems” … ?

Follow the Discussion on Facebook

Fr. David Friel · May 9, 2021

Virtual Sacred Music Colloquium 2021

Alongside many familiar faces, several new presenters are joining the faculty this year.

Follow the Discussion on Facebook

Fr. David Friel · October 12, 2020

Sacred Music Boot Camp 2020

Three days of practical chant instruction and immersion in the treasury of Catholic sacred music

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Fr. David Friel · June 11, 2020

Virtual Sacred Music Colloquium 2020

The CMAA will offer a virtual version of its annual, week-long workshop.

Follow the Discussion on Facebook

Fr. David Friel · September 8, 2019

PDF Download • Chant Notation—Nuptial Blessing (EF)

With permission from the CDF, the nuptial blessing at a sung EF Mass may be chanted according to this melody.

Fr. David Friel · August 30, 2015

Society for Catholic Liturgy Conference 2015

Featuring Archbishop Salvatore Cordileone, Dr. William Mahrt, and Fr. Uwe Michael Lang

Jeff Ostrowski · February 4, 2015

Exclusive Interview With Dr. William Mahrt

Towards the end I ask the CMAA president a loaded question … and he answers!

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Corpus Christi Watershed

President’s Corner

    PDF • “Music List” (4th Sunday of Advent)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for 21 December 2025, which is the 4th Sunday of Advent (Year A). If such a thing interests you, feel free to download it as a PDF file. The ENTRANCE CHANT is the famous “Roráte Coeli” and the fauxbourdon setting of the COMMUNION is exquisite. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    PDF • Our Lady of Guadalupe (12 Dec.)
    The Responsorial Psalm may be downloaded as a PDF file (organist & vocalist) for 12 December, which is the Feast of Our Lady of Guadalupe. When it comes to the formulary for this Mass, it’s astounding how infrequently it’s included in official books. Prior to Vatican II, one had to search through “supplemental material” printed in the back of hand-missals and graduals. But since 1970, the feast is virtually nonexistent. According to the UNIVERSAL KALENDAR, 12 December is the “Feast of Saint Jane Frances De Chantal, Religious” (Die 12 decembris: S. Ioannæ Franciscæ de Chantal, religiosæ). Why should that feast overpower Our Lady of Guadalupe? In the United States, OLG is celebrated—and I’d assume in Mexico, Central America, South America, and Canada—but, as I said, the Propria Missae are virtually impossible to locate. I possess only three books which mention this feast.
    —Jeff Ostrowski
    Simplified Accompaniment (Advent Hymn)
    Many organists are forced to simultaneously serve as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult. I invite you to download this simplified organ accompaniment (PDF) which in the Father Brébeuf Hymnal is hymn #661: “Come, Thou Long-Expected Jesus” (for ADVENT). I’m toying with the idea of creating a whole bunch of these, to help amateur organists. The last one I uploaded was downloaded more than 2,900 times in a matter of hours—so there appears to be interest.
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Santo Santo Santo”
    Those searching for a dignified, brief, simple, bright setting of SANCTUS in Spanish (“Santo Santo Santo”) are invited to download this Setting in honor of Saint John Brébeuf (organist & vocalist). I wonder if there would be any interest in me recording a rehearsal video for this piece.
    —Jeff Ostrowski
    Pope Leo XIV on Sacred Music
    On 5 December 2025, Pope Leo XIV made this declaration with regard to liturgical music.
    —Corpus Christi Watershed
    “Translations Approved for Liturgical Use”
    According to the newsletter for USSCB’s Committee on Divine Worship dated September 1996, there are three (3) translations of the Bible which can be used in the sacred liturgy in the United States. You can read this information with your own eyes. It seems the USCCB and also Rome fully approved the so-called NRSV (“New Revised Standard Version”) on 13 November 1991 and 6 April 1992 but this permission was then withdrawn in 1994.
    —Corpus Christi Watershed

Random Quote

“Ways to receive Our Lord as King of the Universe…read and reflect on the Sunday Scriptures, plan your whole weekend around receiving your King, wear your best garments, spend time in quiet, kneel to receive Him, receive Him on the tongue, offer silent time of thanks after mass.”

— Most Rev. Bishop Strickland (15 December)

Recent Posts

  • PDF • “Music List” (4th Sunday of Advent)
  • PDF Download • “Santo Santo Santo”
  • Crucial Tips • “Teaching Children How to Sing”
  • Soloists in Gregorian Chant?
  • PDF • Our Lady of Guadalupe (12 Dec.)

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