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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 · October 8, 2025

The Real Miracle of Gregorian Chant

It may not have been dictated into a saintly pope’s ear by a dove, but the real story is no less wonderful.

Dr. Charles Weaver · March 5, 2025

Solmization from the Inside, Part 3

Making the case for the (very) old method of solfège, or, what is so sharp about sharp notes?

Dr. Charles Weaver · January 23, 2025

My Recent Conversation • “Chant Rhythm”

This past week, I appeared on the Nikhil Hogan show to talk about Gregorian rhythm and the Vatican edition.

Dr. Charles Weaver · December 29, 2024

God’s in His Holy Place, but in which Mode?

Ideas have consequences.

Dr. Charles Weaver · December 13, 2024

Church Keys Old and New

Musical scholars are divided on whether the modes are a useful way to think about music, but I’m convinced they are. In the seventeenth century, musicians created a fruitful and lasting link between the eight modes and eight particular keys called the church keys.

Dr. Charles Weaver · October 2, 2024

Glancing at Eurydice: Why Read Medieval Theory?

Sometimes the ancients just perfectly capture the essence of some experience that we all share.

Dr. Charles Weaver · September 25, 2024

A Talk on the Importance of Chant

Back in January I gave a talk at Sacred Heart Parish in Grand Rapids, Michigan. They have a fantastic lecture series, and this was also in connection with their admirable project on the fifth centennial of Palestrina’s birth. The talk is now available on Spotify, and I hope it will be of some interest to […]

Dr. Charles Weaver · July 4, 2024

PDF Download • How to Sing Gregorian Chant Like Dom Pothier

Dom Lucien David gives a practical lesson in applying the method of Dom Pothier to a chant from the Kyriale.

Dr. Charles Weaver · May 4, 2024

A Couple of Recent Podcast Appearances

I’ve participated in some recent conversations about chant that might be of interest to our readers.

Dr. Charles Weaver · March 16, 2024

Response to Jeff: Rhythmic Signs Again

I propose that we consider Dom Pothier’s method without making an unnecessary appeal to authority.

Dr. Charles Weaver · February 5, 2024

What is the Place of the Horizontal Episema in Dom Mocquereau’s Theory?

It really is a minor part of Mocquereau’s theoretical enterprise. That doesn’t mean it’s completely pointless, though.

Dr. Charles Weaver · December 8, 2023

An Important Anniversary

Dom Pothier died 100 years ago today.

Dr. Charles Weaver · November 25, 2023

Accent and Gregorian Melody

The idea of the tonic accent in Gregorian melody runs through the entire Solesmes tradition from Gontier to Pothier to Mocquereau to the present.

Dr. Charles Weaver · November 22, 2023

Bearing Witness

We Church musicians have a high calling to bear witness to the truth with our music and our lives.

Dr. Charles Weaver · November 12, 2023

A Classic Example of Modal Modulation

We can think of the modes and their traditional characters in a dynamic way, and it can help us to have a little more shape and direction in our singing.

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Corpus Christi Watershed

President’s Corner

    “Lamb of God” (Musical Setting)
    The MASS OF SAINT ANNE LINE has been quite popular ever since ROMAN MISSAL Third Edition was released circa 2011. You can now download the musical score (PDF) for this setting, placed into five (5) different keys; i.e. “pitch levels” that are high and low. This makes it possible to adjust based upon who’s singing at which time of day.
    —Jeff Ostrowski
    PDF Download • Introit (2nd Sn. Ord.)
    This coming Sunday, 18 January 2026, is the 3rd Sunday in Ordinary Time (Year A). The ENTRANCE CHANT is set according to the fourth mode, which sounds ‘serious’ or ‘dark’ or ‘haunting’ or ‘mysterious’—and its English adaptation corresponds to the authentic version (“Omnis terra adóret”) found in the GRADUALE ROMANUM. In this rehearsal video (click here) I attempt to sing the melody while simultaneously accompanying myself on the organ. I encourage you to print off the organ accompaniment (PDF) and play through it, because the harmonies are delightful.
    —Jeff Ostrowski
    Spectacular Communion Setting!
    The FAUXBOURDON setting of the Communion for the Baptism of the Lord (which will occur this coming Sunday) strikes me as quite spectacular. The verses—composed by the fifth century Christian poet, Coelius Sedulius—come from a long alphabetical acrostic and are deservedly famous. The feast of the LORD’S BAPTISM was traditionally the octave day of Epiphany, but in the 1962 kalendar it was made ‘more explicit’ or emphasized. The 1970 MISSALE ROMANUM elevated this feast even further.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of January (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. Signing up couldn’t be easier: simply scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski
    PDF Download • “In Paradisum” in English
    We always sing the IN PARADISUM in Latin, as printed on this PDF score. I have an appallingly bad memory (meaning I’d be a horrible witness in court). In any event, it’s been brought to my attention that 15 years ago I created this organ accompaniment for the famous and beautiful ‘IN PARADISUM’ Gregorian chant sung in English according to ‘MR3’ (Roman Missal, Third Edition). If anyone desires such a thing, feel free to download and print. Looking back, I wish I’d brought the TENOR and BASS voices into a unison (on B-Natural) for the word “welcome” on the second line.
    —Jeff Ostrowski

Random Quote

“The hostile attitude of music directors and distinguished composers prevented the reform from introducing renewal and pastoral participation into sacred music.”

— Hannibal Bugnini

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