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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

Sheet Music

Fr. David Friel · July 24, 2022

Free Folio of New Sacred Music for Parish Liturgies

A gift from The Catholic Sacred Music Project and the Benedict XVI Institute

Keven Smith · July 27, 2020

Ubi Caritas Goes Viral: My Thoughts

Have you seen the viral video of four men singing Ubi Caritas in a stairwell? Here are some thoughts on this phenomenon.

Follow the Discussion on Facebook

Fr. David Friel · June 4, 2017

Thoughts on Benedict

St. Benedict, Pope Emeritus Benedict XVI, and “Ars Celebrandi”

Fr. David Friel · April 30, 2017

Masterful “Salve Regina” by 17th-Century Portuguese Composer

This is the sort of setting that could only have derived from faith and grown out of the experience of praying these words repeatedly and fervently.

Fr. David Friel · January 30, 2017

In Defense of the Organ Postlude

Newly-published reflections from Professor Kwasniewski.

Fr. David Friel · January 30, 2017

In Defense of the Organ Postlude 1

Newly-published reflections from Professor Kwasniewski.

Fr. David Friel · January 22, 2017

Motet for Three Voices: “O Crux Ave” 1

This piece is ideal for use as a motet during the veneration of the Holy Cross at the Good Friday liturgy.

Fr. David Friel · October 27, 2016

New Sacred Music Magazine — “Altare Dei”

Announcing the first issue of a brand new publication focusing on liturgy and sacred music.

Fr. David Friel · January 24, 2016

Motet for Three Voices: “O Crux Ave”

This piece is ideal for use as a motet during the veneration of the Holy Cross at the Good Friday liturgy.

Veronica Brandt · February 7, 2015

Motets and Midi practice tracks

The search for practice tracks for Jesu Rex Admirabilis yielded a treasure trove of choir resources.

Veronica Brandt · January 3, 2015

Easy Organ Hymns for Catholics

There is a built in tendency for nervous musicians to rush things – I think as your heart beats faster, your perception of time is dilated. As you build more confidence your sense of timing improves too.

Fr. David Friel · August 10, 2014

Important Resources for Liturgical Reform (3 of 7)

Public Domain Scores & Published Resources

Veronica Brandt · January 18, 2014

Introducing polyphony in a round about way

Canons are a handy way to introduce singing in harmony. Here are some picks from the Choral Public Domain Library.

Veronica Brandt · September 28, 2013

Holy Michael Archangel

Not one, but two hymns that the omniscient Google didn’t know about, in honour of St Michael the Archangel, with sheet music.

Veronica Brandt · August 17, 2013

A hymn for St Mary of the Cross

A beautiful hymn from Rev Fr Popplewell FSSP from Canberra, Australia.

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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

    “Reminder” — Month of Febr. (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. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    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

The Princess of the Palatinate once described German Protestantism to Louis XIV with this formula: “In our country, everyone makes up his own little religion.” Every priest, or almost every priest, is at this point today. All the faithful have to say is “Amen.” They are still blessed when the pastor’s religion does not change every Sunday, at the whim of his reading, the foolery he has seen others at, or at his own pure fancy.

— Professor Louis Bouyer (1968)

Recent Posts

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  • “Reminder” — Month of Febr. (2026)
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  • Dom Pothier • Photo from 1904

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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.