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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

Archives for February 2023

Patrick Williams · February 28, 2023

Patrick Williams Responds to Matthew Frederes

“. . . zealous to keep the traditions of our forefathers, ever trying . . . boldly to restore any which might have been forgotten in the course of the ages.” —Preface to the Vatican Edition

Jeff Ostrowski · February 28, 2023

“The Times” mentions CCW

We were mentioned in article in an article by “The Times” (United Kingdom), as you can see here.

Dr. Charles Weaver · February 27, 2023

An Interview on Mocquereau’s Method

I recently appeared on Square Notes, the Sacred Music Podcast to discuss some of the basics of Dom Mocquereau’s system of Gregorian rhythm. It’s impossible to give a full treatment to such a complex topic in a mere forty minutes, but I touched on a lot of the foundational ideas, with especial emphasis on the […]

Matthew Frederes · February 27, 2023

Do We Need a Beautiful Cento, or an Archaic Reversion?

The Vatican Edition, as well as St. Gregory’s work were both a Cento built on tradition to unify the Church. Semiological editions are archaic reversions. A close look at the Puer Natus Est in both forms is offered.

Jeff Ostrowski · February 25, 2023

Eleven (11) Rare Lenten Hymns You’ve Not Sung!

“Our hymnbooks know nothing of such a treasure as this, and give us pages of poor sentiment in doggerel lines by some tenth-rate modern versifier.” —Father Fortescue

Jeff Ostrowski · February 25, 2023

Roche’s Rescript • “Canonically Binding? Yes or No?”

What bishops need to know!

Dr. Gregory Hamilton · February 25, 2023

Has this all been our fault?

It seems to me that our responsibility of teaching the Faith through music is much more serious than is commonly perceived.

Patrick Williams · February 25, 2023

Blackley’s Sunday Mass Propers Now Available as Free PDF

“Transcriptions are best done by those who both sing & conduct and enjoy studying minute neumatic details & problems—all this while making sure that the horizontal musical line of each song is their main musical concern.” —R. John Blackley

Richard J. Clark · February 24, 2023

New Album from the Boys of Saint Paul’s Choir School

NEW CD from the Saint Paul’s Choir School, Harvard Square with the Sophia Music Group label

Jeff Ostrowski · February 23, 2023

Marier’s Majestic Music • In Singapore?

“One person I spoke to frequently—although I never met him…” (?)

Jeff Ostrowski · February 22, 2023

My Wish for Each of You

If we destroy our mental health, we will be no good to anybody.

Keven Smith · February 21, 2023

Lenten Reflection: Can We Enjoy What Lies Ahead?

Let St. Augustine’s wisdom guide you through the most important season for Church musicians.

Follow the Discussion on Facebook

Jeff Ostrowski · February 20, 2023

PDF Download • “Quinquagesima Sunday” Organ Accompaniment Booklet (25 pages)

The word “Alleluia” changes to: “Praise be to Thee, O Lord, King of eternal glory.”

Jeff Ostrowski · February 19, 2023

Jeff’s Attempt At Singing

I’m much more comfortable in a baritone’s range than a soprano’s range!

Jeff Ostrowski · February 19, 2023

Three-Voice Piece You’ll Love!

To help my volunteer choir members learn, I have attempted to record all the vocal parts for Justorum Animae, composed for SOPRANO, ALTO, and BASS. It’s from a brilliant collection by Kevin Allen called Matri Divinae Gratiae. You can hear my attempt by visiting this website and scrolling down to “Justorum Animæ.” My singers really […]

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Corpus Christi Watershed

President’s Corner

    PDF Download • “Ubi Caritas” (SATB)
    I remember singing “Ubi Cáritas” by Maurice Duruflé at the conservatory. I was deeply moved by it. However, some feel Duruflé’s version isn’t suitable for small choirs since it’s written for 6 voices and the bass tessitura is quite low. That’s why I was absolutely thrilled to discover this “Ubi cáritas” (SATB) for smaller choirs by Énemond Moreau, who studied with OSCAR DEPUYDT (d. 1925), an orphan who became a towering figure of Catholic music. Depuydt’s students include: Flor Peeters (d. 1986); Monsignor Jules Van Nuffel (d. 1953); Arthur Meulemans (d. 1966); Monsignor Jules Vyverman (d. 1989); and Gustaaf Nees (d. 1965). Rehearsal videos for each individual voice await you at #19705. When I came across the astonishing English translation for “Ubi Cáritas” by Monsignor Ronald Knox—matching the Latin’s meter—I decided to add those lyrics as an option (for churches which have banned Latin). My wife and I made this recording to give you some idea how it sounds.
    —Jeff Ostrowski
    PDF • “Cantus Mariales” (192 pages)
    Andrea Leal has posted an absolutely pristine scan of CANTUS MARIALES (192 pages) which can be downloaded as a PDF file. To access this treasure, navigate to the frabjous article Andrea posted Monday. The file is being offered completely free of charge. The beginning pages of the book have something not to be missed: viz. a letter from Pope Saint Pius X to Dom Pothier, in which the pope calls Abbat Pothier “a man versed above all others in the science of liturgy, and to whom the cause of Gregorian chant is greatly indebted.”
    —Jeff Ostrowski
    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —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

Random Quote

Benedict XVI in particular felt it was wrong to prohibit the celebration of Mass in the ancient rite in parish churches, as it is always dangerous to corner a group of faithful so as to make them feel persecuted and to inspire in them a sense of having to safeguard their identity at all costs in the face of the “enemy.”

— Archbishop Georg Gänswein

Recent Posts

  • PDF Download • “Ubi Caritas” (SATB)
  • PDF • “Cantus Mariales” (192 pages)
  • PDF Download • Fourteen (14) Versions of the Splendid Hymn: “Salve Mater Misericordiae”
  • Fulton J. Sheen • “24-Hour Catechism”
  • Music List • (2nd Sunday of Lent)

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