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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

Andrea Leal • Article Archive

Andrea Leal is a wife and homeschooling mother of 6 children. She holds a Bachelor's Degree from UC Berkeley in Peace and Conflict Studies, and serves as choir director for the Traditional Latin Mass in Las Vegas.—Read full biography (with photographs).

Andrea Leal · June 1, 2020

Troubleshooting Gregorian Chant

Does your chanting need a simple tune-up or a whole engine rebuild? Let’s take a look under the hood.

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Andrea Leal · May 22, 2020

Huge Announcement • The Brébeuf Virtual Choir!

The Sacred Music Symposium is bearing fruits none of its organizers—myself included—could have imagined. Laus Deo!

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Andrea Leal · April 26, 2020

Trust the Good Shepherd

These difficult times call for an extra measure of humility, patience and trust.

Andrea Leal · April 10, 2020

Do Not Let Your Voice be Silenced

On spiritual dryness and the loss of the sacraments.

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Andrea Leal · April 4, 2020

Repeating Repertoire? • Andrea Leal

To repeat or not to repeat: that is the question!

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Andrea Leal · February 25, 2020

Why Should You Come to the Symposium?

The fruits of attending the Symposium will extend throughout the generations.

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Andrea Leal · January 29, 2020

In Which a Neo-Pagan Converts

I could feel that this Glory was immense, and mysterious, and real. But I could not quite grasp what that meant for me or what I should even do about it.

Andrea Leal · November 21, 2019

PDF Download • “Erunt Signa In Sole” (Advent)

“One of the challenges of a small choir is having enough singers to pull off any kind of polyphony. ” —Andrea Leal

Andrea Leal · January 3, 2013

Andrea Leal • Biography

While studying for her Peace and Conflict Studies degree at UC Berkeley, a chance encounter with some Dominican seminarians led to an invitation to attend Mass.

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Corpus Christi Watershed

President’s Corner

    PDF Download • “Organ Accompaniment”
    Over the past few years, I’ve been harmonizing all the vernacular plainsong Introit settings by the CHAUMONOT COMPOSERS GROUP. This coming Sunday—10 May 2026—is the 6th Sunday of Easter (Year A). The following declaration will probably smack of “blowing my own horn.” However, I’d rank this accompaniment as my best yet. In this rehearsal video, I attempt to sing it while simultaneously accompanying myself on the pipe organ. The musical score [for singers] as well as my organ accompaniment can be downloaded free of charge from the flourishing feasts website.
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 4 May 2026
    A few days ago, the CORPUS CHRISTI WATERSHED Facebook page posted this Gregorian Chant quiz regarding a rubric for the SEQUENCE for the feast of Corpus Christi: “Lauda Sion Salvatórem.” There is no audience more intelligent than ours—yet surprisingly nobody has been able to guess the rubric. Drop me an email with the right answer, and I’ll affirm your brilliance to everyone I encounter!
    —Jeff Ostrowski
    “Rare Photographs” • Hannibal Bugnini
    On 2 September 2025, we included in this article extremely rare photographs of Archbishop Hannibal Bugnini taken in Iran circa 1979. Bugnini had initially been banished by the pope to Uruguay, but he refused to obey. [This is interesting, since Bugnini relied upon ‘blind obedience’ when it came to modifications of the ancient liturgy.] After he refused to obey the order from the pope, Hannibal Bugnini was banished to Iran. You can also watch a short video of Hannibal Bugnini in Iran, dated 10 November 1979. That’s about a week after the USA embassy hostage crisis began in Tehran, and Pope Saint John Paul II had sent the leader of the Iranian Revolution a special letter.
    —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

“Like all other liturgical functions, like offices and ranks in the Church, indeed like everything else in the world, the religious service that we call the Mass existed long before it had a special technical name.”

— ‘Rev. Adrian Fortescue (THE MASS, page 397)’

Recent Posts

  • PDF Download • “Organ Accompaniment”
  • “Gregorian Chant Quiz” • 4 May 2026
  • “Rare Photographs” • Hannibal Bugnini
  • “Regina Caeli” • More Than You Wanted To Know
  • Music List • “5th Sunday of Easter” (Year A)

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