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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

Sacred Architecture

Fr. David Friel · November 30, 2020

A Whale of a Pulpit

An unusual genre of ambo architecture

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Fr. David Friel · November 18, 2020

On the Dedication of Churches

Celebrating the dedication of St. Peter’s Basilica and St. Paul Outside the Walls

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Jeff Ostrowski · October 12, 2020

Catholic Architecture • “Modern vs. Ancient”

A picture is worth 1,000 words…

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Fr. David Friel · February 23, 2020

Exploring the 5th/6th-Century Mosaics of Ravenna

These magnificent images are not only attractive to behold, but also deeply theological.

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Fr. David Friel · February 17, 2020

Imposing the Classical Style on Public Building Projects?

A rumored executive order would unify the architectural style of future projects and upgrades.

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Fr. David Friel · November 9, 2019

The Gratuity of Beauty

Thoughts on the Feast of the Dedication of the Lateran Basilica

Fr. David Friel · September 15, 2019

This Is a Cathedral, Not Disneyland

Several English cathedrals hosted peculiar amusements this summer.

Fr. David Friel · February 17, 2019

Sacred Architecture and Brexit

A connecting link in the form of Gothic cathedrals

Fr. David Friel · August 28, 2016

On the Spirit of Conservation

A Reflection on the National Parks, Sacred Architecture, and “Laudato Si”

Fr. David Friel · December 13, 2015

Lighting Up Façades

Catholic churches ought not to be treated as houses of entertainment, but as houses of prayer.

Fr. David Friel · July 27, 2015

The Church of Our Savior

And the Case of the Vanishing Icons

Fr. David Friel · November 9, 2014

Sacred Architecture & the Dedication of the Lateran Basilica

When we come to church, there should be no question whether we are in a church or in a coffeehouse or in a multipurpose gym.

Fr. David Friel · March 23, 2014

Secular Architecture

Reneging on the Promise of Public Art

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Corpus Christi Watershed

President’s Corner

    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
    PDF Download • “Hymn for 2 Voices”
    Readers who click on this video will see that it starts with verses of the “Pange Lingua” hymn by Saint Thomas Aquinas (d. 1274) arranged for two voices. However, there’s a polyphonic refrain (“Tantum Ergo”) for three voices, taken from Kevin Allen’s Motecta Trium Vocum. If your choir is very small, this piece is for you! You can download the PDF score free of charge—and you can also utilize the rehearsal videos for each individual voice—by navigating yourself to #20323.
    —Jeff Ostrowski
    “Holy Name Hymn” (2-Voice Arrangement)
    When we post a direct URL link, we frequently get thousands of downloads. But when scrolling is required, very few take the time. I mention this because those who click on this URL link and scroll to the bottom can download—completely free of charge—a clever 2-voice arrangement for a famous hymn to the Most Holy Name of Jesus. In a pinch, it can be nicely sung by one male and one female! It will be of interest to those who seek arrangements for two voices.
    —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

“The Pope is not an absolute monarch whose thoughts and desires are law. On the contrary: the Pope’s ministry is a guarantee of obedience to Christ and to his Word. He must not proclaim his own ideas, but rather constantly bind himself and the Church to obedience to God’s Word, in the face of every attempt to adapt it or water it down, and every form of opportunism.”

— ‘His Holiness, Pope Benedict XVI (11 May 2005)’

Recent Posts

  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”
  • (January 2026) • “Children Singing Plainsong”
  • “Inquiry” • For Music Directors of Cathedrals and Larger Parish Churches

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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.