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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 · April 3, 2015

Rubrics • Good Friday (Pius XII Holy Week Revisions)

Even Solesmes makes errors from time to time.

Richard J. Clark · April 3, 2015

“O Sacred Head Surrounded” | Buxtehude

Dieterich Buxtehude was a direct influence on Johann Sebastian Bach—and for good reason.

Jeff Ostrowski · April 2, 2015

An Essential & Unique Thing For Holy Thursday

…and a look at Holy Thursday from the 1965 Missal.

Dr. Lucas Tappan · April 2, 2015

Sing One Note

When most singers receive a new motet, they focus on the words rather than the music.

Jeff Ostrowski · April 1, 2015

Judas Iscariot & Religious Freedom

Some have criticized Christ for making Judas part of his special group of friends.

Jeff Ostrowski · April 1, 2015

Musical Resources • Holy Thursday (1962)

Bells are rung and the organ played at the “Gloria”—but then stay silent until the Easter Vigil “Gloria.”

Jeff Ostrowski · March 31, 2015

What Happened To Our Catholic Artists?

From what I can tell, a trend toward *ugly* artwork in Church publications began in the late 1950s.

Jeff Ostrowski · March 30, 2015

Is This Where It All Began?

Why do so many traditional priests have an aversion to Pope Pius XII’s revision of Holy Week?

Dr. Lucas Tappan · March 30, 2015

St. Paul’s Choir School, Harvard Square, Boston

Are you a priest, are you a music director? Perhaps God is calling YOU!

Jeff Ostrowski · March 29, 2015

Musical Resources • Palm Sunday (1962)

There are two ways to distribute palm branches in the Extraordinary Form.

Fr. David Friel · March 29, 2015

Essential Resources for Holy Week

Knowing What Is Needed

Jeff Ostrowski · March 29, 2015

Palm Sunday Outline • Extraordinary Form

During the procession, all or some of the following selections may be sung…

Veronica Brandt · March 28, 2015

Scales and counterpoint

Two part choir exercises – one for every day of the year plus a few dozen to spare.

Richard J. Clark · March 27, 2015

Five Things Directors and Choirs Must Remember This Week

You may forever change the lives of someone you do not know in ways you will never know.

Jeff Ostrowski · March 26, 2015

Diversity Of Thought

When it comes to reforming the liturgy, they want “all voices heard.”

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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

“We turn to the East when we stand to pray, since this is where the sun and the stars rise. It is not, of course, as if God were there alone and had forsaken the rest of creation. Rather, when these earthly bodies of ours are turned towards the more excellent, heavenly bodies, our minds are thereby prompted to turn towards the most excellent being, that is, to our Lord.”

— Saint Augustine of Hippo

Recent Posts

  • Pope Paul VI • “Sacrificium Laudis” (15 Aug 1966)
  • “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

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