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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

Frank La Rocca • Contemporary Music for the Sacred Treasury

Richard J. Clark · August 28, 2015

SACRED BANQUET! The Eucharist gives us food for a difficult journey. Appropriately, the Mass is our greatest prayer. It is in a way, a rehearsal for our life in heaven. The chant Ave Verum describes Jesus’ body as “a foretaste (of heaven) in the trial of death.” The Mass is nothing less than this. But we are human and we fall short. Faith and reliance upon God must bridge our failings.

As such, music for the Sacred Liturgy must trend toward the transcendent—holy, beautiful, and universal. What it is not called to do is to please anyone other than God. This is a very tall order. Once again, our frail humanity is a frequent obstacle to such ideals. Again, we must rely upon God and the gift of the sacrament of Himself–the Eucharist.

But there are many gems that area beautiful, sacred, and universal. It is our sacred treasury of music, given highest value by Vatican II: “The musical tradition of the universal Church is a treasure of inestimable value, greater even than that of any other art…”(Constitution on the Sacred Liturgy, §112.) Occasionally, there are gems added to this sacred treasury.

F YOU ARE NOT FAMILIAR with the works of composer Frank La Rocca, you should be. His transcendent setting of O Sacrum Convivum is rooted in traditional polyphony, yet is thoroughly modern at every turn. The harmony is modal yet often very accessible to the contemporary modern ear. At other times, the harmonic language is defiant of traditional harmony in the vein of progressive works of the Twentieth and Twenty-first Centuries.

Through it all La Rocca achieves symmetry and wholeness and therefore holiness. It depicts the eternal Eucharist, while simultaneously addressing and calming the anxieties, evils, and depression of modern life. He paints the text beautifully, ultimately filling a besieged world with the hope promised by the Sacred Banquet.

A work such as this moves contemporary sacred music towards the realization of Vatican II. It represents an ideal not because of style or preference but because of transcendence and significance. Anchored in tradition, it speaks with the authority of the ages yet with the innovation of modernity. Imbued with the Spirit, it is timeless.

O Sacrum Convivium
text: St. Thomas Aquinas (1225-1274)

O sacred banquet!
in which Christ is received,
the memory of his Passion is renewed,
the mind is filled with grace,
and a pledge of future glory to us is given.

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

Filed Under: Articles Last Updated: January 1, 2020

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About Richard J. Clark

Richard J. Clark is the Director of Music of the Archdiocese of Boston and the Cathedral of the Holy Cross.—(Read full biography).

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Corpus Christi Watershed

President’s Corner

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    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

After sixty years as teacher, composer, and organist, I may state that the Gregorian Chant should be part of the basic material of any musical education, be it religious or secular. The study of it enormously enlarges the spiritual background of any musician. Whereas students in literature will always be required to study Dante, Petrarch and Chaucer, why neglect Gregorian in music education?

— Flor Peeters

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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.