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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

Articles

Andrew Leung · January 30, 2018

Cardinal Zen’s Open Letter

Cardinal Zen explaining the current situation of the Church in China.

Fr. David Friel · January 28, 2018

The Hillbilly Thomists

A New Dominican CD

Jeff Ostrowski · January 28, 2018

PDF Download • “Agnus Dei” … for Lent

…including rehearsal videos for each individual voice!

Veronica Brandt · January 27, 2018

Can You Sing Along to Monks?

A video to supplement our local choir practices – a quick run through Missa Orbis Factor (also known as Mass XI) – the Gregorian Mass setting for Sundays during the year.

Jeff Ostrowski · January 26, 2018

Septuagesima Sunday (Extraordinary Form)

“The groans of death surround me, the sorrows of hell encompassed me…”

Andrew Leung · January 25, 2018

FREE • Chant Conducting Seminar

Register now!!! Free online seminar on Gregorian Chant Conducting with Dr. Jennifer Donelson

Jeff Ostrowski · January 24, 2018

English Prayers at EF Mass • How old are they?

The English translation memorized by “Latin Mass” Catholics goes back centuries!

Dr. Lucas Tappan · January 23, 2018

Forward, Ever Forward!

One day, God willing, when He calls you into the New and Eternal Jerusalem, you will discover the eternal consequences of the offering of your widow’s mite.

Jeff Ostrowski · January 22, 2018

PDF Download • Dom Pothier Biography (1947)

“Dom Pothier himself acted as an illustrator, decorating his work with vignettes, illuminated capitals, tailpieces, even full-page illustrations representing the mysteries of the Annunciation and Christmas.”

Fr. David Friel · January 21, 2018

Dedication of the Cathedral Basilica of Mary, Queen of the World

Three new choral works featured during this celebration on 13 October 2017.

Richard J. Clark · January 19, 2018

Two Choral Works and Propers for Lent

Chant-based works for Lent

Jeff Ostrowski · January 19, 2018

PDF • “Hosanna” Catholic Hymnal (285 Pages)

“Many choirs of children still use hymnals that are wretched from a musical and ecclesiastical standpoint…” —Fr. Ludwig Bonvin

Jeff Ostrowski · January 18, 2018

3rd Sunday after Epiphany (Extraordinary Form)

“…and behold a leper came and adored Him, saying, Lord, if Thou wilt Thou canst make me clean.”

Jeff Ostrowski · January 17, 2018

Spanish Subtitles Added • Absolutely Superb!

The interviews with young Catholics are truly awesome.

Dr. Lucas Tappan · January 16, 2018

What If…

Whether a Gothic cathedral in France, a rural Norman church in England or a Californian mission church, each one in its own way has the power to lift our eyes in contemplation of the New and Eternal Jerusalem.

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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

“There are no hymns, in this sense, till the fourth century; they were not admitted to the Roman office till the twelfth. No Eastern rite to this day knows this kind of hymn. Indeed, in our Roman rite we still have the archaic offices of the last days of Holy Week and of the Easter octave, which—just because they are archaic—have no hymns.”

— Adrian Fortescue (25 March 1916)

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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