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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

Andrew Leung • Article Archive

Andrew Leung graduated from the sacred music program of Franciscan University of Steubenville, majored in vocal performance. He has also studied organ, choral conducting and Gregorian chant with world-class musicians. Prior to returning to Hong Kong, he served as a parish music director in Atlanta, and later as the organist and choirmaster at the Cathedral of Macau, China. Andrew is currently the music director of Vox Antiqua, conductor of the Cecilian Singers and music director at Our Lady of China Church. He is also an artist and vocal coach at the Paul Phoenix Academy.—Read full biography (with photographs).

Andrew Leung · September 24, 2015

Papal Liturgies – Day 3 of the Papal Visit

Pope Francis celebrated Solemn Vespers at St. Patrick’s Cathedral in NYC.

Andrew Leung · September 24, 2015

My New Assignment—Part 1

Please pray for me as I continue to discern my vocation to the priesthood.

Andrew Leung · September 23, 2015

Papal Liturgies – Day 2 of the Papal Visit

Some highlights of the papal liturgies on the second day of Pope Francis’s visit

Andrew Leung · September 17, 2015

Sir David Willcocks (1919-2015)

Sir David Willcocks passed away at home today aged 95.

Andrew Leung · September 17, 2015

Pontifical Solemn High Mass in Steubenville

Students and Alumni of the Sacred Music Program of Franciscan University of Steubenville sang the Pontifical Solemn High Mass celebrated by Cardinal Burke.

Andrew Leung · September 15, 2015

10 Ideas for Practicing Choral Music

“Practicing Choral Music: Ten ideas the singer who doesn’t think they can practice on their own” by Doreen Fryling, a lifelong practice avoider.

Andrew Leung · September 10, 2015

Praying for Our Dead

“Praying for Our Dead: Essential Music for Catholic Funeral Mass” workshop will be held in Jaspers, GA on October 3.

Andrew Leung · September 3, 2015

Cardinal Burke will be in Steubenville!

Cardinal Burke will be visiting Steubenville next Tuesday.

Andrew Leung · September 2, 2015

Video • Ars Celebrandi 2015

A video of Ars Celebrandi Workshops in Poland

Andrew Leung · September 1, 2015

BIG NEWS • SSPX Priests can Validly Absolve

Pope Francis has granted that SSPX priests can give absolution validly and licitly during the Jubilee Year of Mercy.

Andrew Leung · August 27, 2015

Cake or Frosting?

The Liturgy is the cake and Sacred Music is the frosting…

Andrew Leung · August 26, 2015

A Paragraph that Caught Attention

“Re-discovery of the Church’s Sacred Tradition: II Kings 22” by Fr. David Carter, JCL.

Andrew Leung · August 20, 2015

The Danger of Praise and Worship

Praise and Worship can be dangerous and confusing…

Andrew Leung · August 18, 2015

Summer Sacred Music Workshop — Report

Report on the Summer Sacred Music Workshop in Jasper, GA.

Andrew Leung · August 13, 2015

Thoughts on the “Hymn” for the Year of Mercy?

The Vatican has just introduced the official hymn of the Holy Year Of Mercy. Any thoughts?

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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

“Like all other liturgical functions, like offices and ranks in the Church, indeed like everything else in the world, the religious service that we call the Mass existed long before it had a special technical name.”

— ‘Rev. Adrian Fortescue (THE MASS, page 397)’

Recent Posts

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  • 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.