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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

Articles

Jeff Ostrowski · January 10, 2025

PDF Download • “Baptism of the Lord” (Hymn)

From what I have seen, musicians tend to be the best liturgists…

Dr. Lucas Tappan · January 9, 2025

Livestreams Worth the Reader’s Time

Today I introduce two very different—yet equally sublime—choral foundations.

Corpus Christi Watershed · January 8, 2025

“Prelim. Details” • Sacred Music Symposium 2025

Too many parish choirs don’t sound as nice as they could. We’re here to help!

Jeff Ostrowski · January 6, 2025

PDF Download • Extremely Rare! —Solesmes “Graduale” acc. to the Official Rhythm (1,049 pages)

Doesn’t it stand to reason that we should sing from this edition in the manner its creators intended?

Jeff Ostrowski · January 3, 2025

PDF Download • “Communion Chant” (Epiphany)

Fully harmonized, including fabulous (optional) verses from the New Testament.

Corrinne May · January 3, 2025

Re: “O Magnum Mysterium” by Lauridsen

Nothing quite like singing for two (2) Apostolic nuncios!

Fr. David Friel · January 2, 2025

In Memoriam • Dr. William Mahrt

A brilliant and faithful man who had tasted heaven in the chants of the Church

Keven Smith · January 2, 2025

Tuning Your Choir Without Driving Them Mad

How to achieve outstanding intonation without making your rehearsals tedious and stressful.

Follow the Discussion on Facebook

Corpus Christi Watershed · January 2, 2025

Featured on FOX 47 News: “Latin Mass makes a comeback in Jackson, Michigan”

“Interest is growing intensely among the young, some traveling each Sunday from far away…”

Jeff Ostrowski · January 1, 2025

PDF Download • “What Child Is This” (Harmonized by the Von Trapp Family Singers)

Download this book—129 pages!—free of charge as a PDF: “The Trapp Family Book of Christmas Songs.”

Dr. Charles Weaver · December 29, 2024

God’s in His Holy Place, but in which Mode?

Ideas have consequences.

Jeff Ostrowski · December 26, 2024

Bizarre Statements From “Leaflet Missal” Founder

Imagine blaming the rise of Adolf Hitler on the Church’s immemorial use of a ‘lingua sacra’ during Mass!

Jeff Ostrowski · December 25, 2024

PDF Download • From Cambridge: “Saint John Fisher Responsorial Psalms Collection” (253 Pages)

This 2024 collection incorporates responsorial psalms by many composers, particularly Catholic composers associated with Cambridge University.

Corpus Christi Watershed · December 23, 2024

Reader Question • “Extra Verses” for the Propers

Jeff Ostrowski answers a reader’s question with nine (9) statements.

Jeff Ostrowski · December 20, 2024

“Source and Summit” • What Is That?

Notice how Dom Franquesa (without explanation) stealthily annihilates sacrifice, sin, and the adoration we owe God.

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Corpus Christi Watershed

President’s Corner

    “Sanctus VIII” • Organ Accompaniment
    A few days ago, I composed this organ harmonization for SANCTUS VIII. This Mass is traditionally called Missa de ángelis or “Mass of the angels.” In French, it is Messe de Anges. You can evaluate my attempt to simultaneously accompany myself on the pipe organ (click here) while singing the melody. My parish is currently singing this setting.
    —Jeff Ostrowski
    Music List • (5th Sund. Ordinary Time)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for this coming Sunday, 8 February 2026, which is the 5th Sunday in Ordinary Time (Year A). If such a thing interests you, feel free to download it as a PDF file. You will probably notice it isn’t as ‘complete’ or ‘spiffy’ as usual, owing to some difficulties which took place this week.
    —Jeff Ostrowski
    PDF • “Communion” (5th Sunday in Ordin.)
    The COMMUNION ANTIPHON for this coming Sunday, 8 February 2026—which is the 5th Sunday in Ordinary Time (Year A)—is truly delightful. You can download the musical score completely free of charge. This text will be familiar to altar boys, because it’s PSALM 42. The Feder Missal makes the following claim about that psalm: “A hymn of a temple musician from Jerusalem: he is an exile in a heathen land, and he longs for the holy city and his ministry in the Temple there. The Church makes his words her own.”
    —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

“I have devoted myself too much, I think, to Bach, to Mozart and to Liszt. I wish now that I could emancipate myself from them. Schumann is no use to me any more, Beethoven only with an effort and strict selection. Chopin has attracted and repelled me all my life; and I have heard his music too often—prostituted, profaned, vulgarized … I do not know what to choose for a new repertory!”

— Ferruccio Busoni (to a colleague in 1922, when he was 56 years old)

Recent Posts

  • “Sanctus VIII” • Organ Accompaniment
  • PDF Download • Sanctus VIII Organ Accompaniment (“Mass of the Angels”)
  • Gorgeous Image of Monks Singing!
  • “Let the Choir Have a Voice” • Jeff Ostrowski’s Essay on Choral Music in the Catholic Mass
  • Solfege Volleyball: A Children’s Choir Game

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