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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

PDF Download

Jeff Ostrowski · January 29, 2026

Dom Pothier • Photo from 1904

This is quite a beautiful image.

Jeff Ostrowski · January 29, 2026

PDF Chart • “Plainsong Rhythm”

Whence this lack of curiosity?

Jeff Ostrowski · January 28, 2026

PDF • “3-Voice Motet” (Father De Laet)

Motet is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.”

Jeff Ostrowski · January 28, 2026

PDF Download • “Hymn for 2 Voices”

If your choir is very small, this piece is for you!

Jeff Ostrowski · January 26, 2026

PDF Download • “Pange Lingua” for Three Voices (Father Edgard De Laet)

For very small choirs, this arrangement can be sung with one male and two females.

Jeff Ostrowski · January 20, 2026

Music List • (3rd Sund. Ordinary Time)

Readers have expressed interest in examining my “music list” for this coming Sunday.

Jeff Ostrowski · January 20, 2026

PDF Download • “Tantum Ergo” for 3 Voices (Kevin Allen) Paired with a Hymn for 2 Voices

The children’s choir I direct loves singing Kevin Allen’s music … as does our adult choir!

Jeff Ostrowski · January 19, 2026

“Holy Name Hymn” (2-Voice Arrangement)

This 2-voice arrangement is free to all.

Jeff Ostrowski · January 19, 2026

PDF Download • Introit (3rd Sn. Ord.)

This coming Sunday—25 January 2026—is the 3rd Sunday in Ordinary Time (Year A).

Corpus Christi Watershed · January 17, 2026

“Information Requested About Hymnals”

The following message was sent to us by a reader…

Jeff Ostrowski · January 17, 2026

“Lamb of God” (Musical Setting)

This makes it possible to adjust based upon who’s singing (at which time of day).

Jeff Ostrowski · January 14, 2026

PDF Download • Introit (2nd Sn. Ord.)

This mode is ‘serious’ or ‘dark’ or ‘haunting’—but gorgeous.

Jeff Ostrowski · January 13, 2026

PDF • “Dr. Adrian Fortescue: Priest & Musician”

“No one was ever (outwardly) less priestly; no one was ever (inwardly) more thoroughly a priest.” —Edith Cowell

Jeff Ostrowski · January 12, 2026

PDF Download • “Outrageously Rare” Feder Missal (Latin, French, & English) — 3,290 pages!

A gift to our readers, presented in super-high resolution.

Jeff Ostrowski · January 9, 2026

Comm. Fauxbourdon • “What does it sound like?”

Remember the days you prayed for what you have now!

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Corpus Christi Watershed

President’s Corner

    💲 5.00 💵
    Our tiny 501(c)3 nonprofit organization exists solely by generous readers who donate $5.00 per month. We have no endowment; we have no major donors; we run no advertisements; we have no savings. A donor wrote to us: “I so appreciate all you do and have done, and your generosity is unprecedented. I am honored to be able to make a monthly contribution.” Another monthly donor says: “Thank you for everything CC Watershed does. We are able to add so much solemnity to Holy Mass due to the resources made available here.” Can you spare a few dollars each month to help us survive?
    —Corpus Christi Watershed
    Dom Pothier • Photo from 1904
    Dom Paul Cagin, in a 1904 publication (L’oeuvre de Solesmes dans la restauration du chant grégorien) made sure to include a beautiful image of Dom Pothier, the legendary abbot of St-Wandrille. Also shown is a very young Dom André Mocquereau. Auguste Pécoul—considered the spiritual “son” of Abbat Prosper Guéranger of Solesmes—wrote as follows on 24 June 1901: “To forestall any confusion, let us remember that there is just one Gregorian notation—that restored, according to the ancient manuscripts, by the eminent Abbot of Saint-Wandrille, Dom Pothier.” ✠
    —Jeff Ostrowski
    PDF • “3-Voice Motet” (Father De Laet)
    I believe 99% of our readers will recognize this hymn tune. Perhaps Father Edgard De Laet should have called it a ‘hymn’ instead of a ‘motet for three voices’—but he’s technically correct, since MOTET is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.” The even verses are for three voices, as you will see if you download the PDF score at #20245. The odd verses may be song a cappella SATB or unison with organ.
    —Jeff Ostrowski

Quick Thoughts

    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
    “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

Random Quote

And since it is becoming that holy things be administered in a holy manner, and of all things this sacrifice is the most holy, the Catholic Church, to the end that it might be worthily and reverently offered and received, instituted many centuries ago the holy canon, which is so free from error that it contains nothing that does not in the highest degree savor of a certain holiness and piety and raise up to God the minds of those who offer.

— Council of Trent (1562)

Recent Posts

  • 💲 5.00 💵
  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”

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Corpus Christi Watershed is a 501(c)3 public charity dedicated to exploring and embodying as our calling the relationship of religion, culture, and the arts. This non-profit organization employs the creative media in service of theology, the Church, and Christian culture for the enrichment and enjoyment of the public.