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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

Gregorio

Veronica Brandt · September 17, 2022

Adding More Spaces around Bar Lines in Gregorio

Some useful tips on adjusting the spacing in Gregorio scores.

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Keven Smith · August 31, 2020

(Installment #3) “Catholic Hymnals” • Keven Smith

Top 10 Features • “An Ideal Extraordinary Form Hymnal”

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Veronica Brandt · January 6, 2018

Tweaking Linebreaks Online with Gregorio

You CAN add linebreaks with Illuminare Score Editor. All in the browser.

Veronica Brandt · December 30, 2017

GABC Propers Tool Revisited

A major shortcut to preparing Gregorian chant propers and ordinaries.

Veronica Brandt · May 28, 2016

Planning a Corpus Christi Procession

Last minute preparations for a Corpus Christi Procession.

Veronica Brandt · June 6, 2015

A hymnal in e-book format

100 pieces of Gregorian chant to carry around in your pocket, with English translations.

Veronica Brandt · May 2, 2015

Taking the easy way out, relatively speaking

Starting a collection of easier propers for the Extraordinary Form. A pair of Alleluias and two Offertory antiphons to start the ball rolling.

Veronica Brandt · February 14, 2015

The modern armchair chant scribes

A great source of chant snippets for your booklets as well as a way to make the internet a better place.

Veronica Brandt · August 24, 2013

What not to do on GitHub

Read my mistakes to save yourself the trouble.

Veronica Brandt · July 13, 2013

What’s new with the age old chant?

Gregorio has a wiki and ideas on typing up semiology.

Veronica Brandt · June 16, 2013

Try Illuminare Score Editor

Yet another training video, this time simpler than ever.

Veronica Brandt · June 10, 2013

Setting propers to psalm tones with gregorio

Another training video showing another easy way to use gregorio online – this time while holding a 4 month old baby girl!

Veronica Brandt · June 8, 2013

GABC Transcription Tools

Computers making life easier for once. No, really!

Veronica Brandt · June 1, 2013

As easy as (G)ABC

Including newly typeset Gregorian chant in your booklets has never been easier.

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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

“We being many are one bread and one body, All who share the one bread and one cup. Vs. Thou hast prepared of thy sweetness for the poor, O God, who makest us to dwell in one mind in thy house. All who share the one bread and one cup.”

— Responsory (Matins for Corpus Christi) transl. by Fortescue

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.