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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

Dr. Charles Weaver • Article Archive

Dr. Charles Weaver is on the faculty of the Juilliard School, and serves as organist and director of music at St. Mary’s Church in Norwalk, Connecticut. His research interests include the history of music theory and the theory of plainchant rhythm. He lives in Connecticut with his wife and four children.—Read full biography (with photographs).

Dr. Charles Weaver · November 9, 2023

Report • “Musical Shape of the Liturgy Conference”

This week I attended part of an excellent academic conference in honor of William Mahrt.

Dr. Charles Weaver · October 21, 2023

Two Ways of Singing the Easter Sequence

Two recordings of the same chant from the Sacred Music Symposium 2023.

Dr. Charles Weaver · October 5, 2023

PDF Dissertation • “Dom Mocquereau and Music Theory” (282 Pages)

My thesis on how Dom Mocquereau relates to other theories of musical rhythm is now available for download.

Dr. Charles Weaver · September 27, 2023

A Brief Addendum

In praise of the Cardine approach to chanting, with some further thoughts on pluralism and correctness in performance practice.

Dr. Charles Weaver · September 24, 2023

Some Questions Answered

Some very quick answers to questions posed by Patrick Williams.

Dr. Charles Weaver · September 13, 2023

A Concert in Honor of William Byrd

The better the voice is, the meeter it is to honour and serve God therewith: and the voice of man is chiefly to be employed to that end.

Dr. Charles Weaver · August 9, 2023

PDF Download • Palestrina’s Most Famous Mass Simplified

“I find Anerio’s work here to be excellent, and I hope you do as well.” —Dr. Charles Weaver

Dr. Charles Weaver · July 22, 2023

An Interview with Bruno de Labriolle

Readers interested in different stylistic approaches to Gregorian chant may enjoy this interview with the singer Bruno de Labriolle, who directs the schola of Saint-Bruno-des-Chartreux in Lyon. The views on chant and liturgy aired in the interview aren’t exactly the same as those of any of our contributors, but I personally find this group’s performances, in […]

Dr. Charles Weaver · July 20, 2023

Stomping Feet, Clattering Hooves, and Other Chant-Related Matters

Did you know that St. Augustine described the sound of one hand clapping?

Dr. Charles Weaver · July 14, 2023

Gregorian Rhythm Wars • “Weaver Responds to Williams”

“Nothing so arouses the soul, gives it wing, sets it free from the earth, releases it from the prison of the body, teaches it to love wisdom, and to condemn all the things of this life, as concordant melody and sacred song composed in rhythm.” —St. John Chrysostom

Dr. Charles Weaver · July 8, 2023

In Praise of Adaptability

A proposal: if we are going to study something as important and mysterious as Gregorian chant, we ought to be able to perform it convincingly in several different ways.

Dr. Charles Weaver · July 5, 2023

The Golden Rule and Mocquereau’s Method

Dom Mocquereau’s editions are a compromise between tradition and paleography. This explains his sometimes surprising semiological conclusions.

Dr. Charles Weaver · June 29, 2023

Some Thoughts on Gregorian Modal Ethos

You should memorize this list.

Dr. Charles Weaver · March 13, 2023

Rhetoric, Number, Measure, and Historicism

The beginnings of a response to mensuralism from the classic Solesmes point of view.

Dr. Charles Weaver · March 7, 2023

Beauty Ever Ancient, Ever New

Every Gregorian melody is a precious gift, and every time we meet a melody again, we have a chance to consider some new aspect.

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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

It is known that the “mora vocis” is part of the compulsory rules of recital of the “Vaticana” and is indicated in the Editio typica and its reprints by a somewhat larger spacing of the neume (one space-line) within one group of neuma.

— 1953 Schwann Edition (PREFACE)

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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