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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 12, 2015

Musical Resources • Low Sunday (a.k.a. “Divine Mercy Sunday” or “Quasimodo” or “White Sunday”)

The organ is back!

Veronica Brandt · April 11, 2015

How did your Holy Week go?

Singing for the Sacred Triduum and Easter ceremonies is an awesome privilege. Coming out the other side can be very sweet indeed, even when things didn’t always go quite as planned.

Richard J. Clark · April 10, 2015

Let This Holy Building Shake with Joy!

Sometimes everything comes together. How is this achieved? Here are a few ways.

Jeff Ostrowski · April 9, 2015

Easter Vigil Readings With Dancer • St. Patrick Catholic Church (Seattle, Washington)

I was surprised to see composer David Haas comment on facebook in support of this.

Andrew Leung · April 9, 2015

The Universal Music

A little reflection on the universality of Sacred Music after Holy Week…

Jeff Ostrowski · April 9, 2015

First Look Images! • “Proper Of The Mass” By Fr. Samuel F. Weber

This 1,292 page book is much thinner than I had anticipated.

Jeff Ostrowski · April 8, 2015

Fascinating Videos From 1958 • Mass Sung In English!

A “Dialogue” Low Mass with singing (c. 1958) by choristers of St Mary’s Cathedral, Sydney.

Jeff Ostrowski · April 7, 2015

Photographs • FSSP Holy Triduum in Los Angeles (2015)

Notice how the priest, dressed in cope, is engulfed in darkness at the beginning of the Easter Vigil—except for candles burning.

Jeff Ostrowski · April 7, 2015

It Has Arrived! • “Proper of the Mass” (Ignatius)

You will notice that Fr. Weber’s version sounds quite similar to the authentic Latin chant.

Jeff Ostrowski · April 6, 2015

Can You Love Liturgy Too Much?

Should we assume malice on the part of those who denigrate the Traditional Mass?

Jeff Ostrowski · April 6, 2015

Jaw-Dropping Liturgical Manuscripts (7,055 Pages)

Catholics can now *see with their own eyes* the antiquity of our liturgy.

Fr. David Friel · April 5, 2015

All Nine Readings

Celebrating the Easter Vigil in Its Fullness

Jeff Ostrowski · April 4, 2015

Rough PDF • Rubrics & Music, Holy Saturday (1962)

I don’t usually release “rough cut” PDF files, but this one is so valuable…

Corpus Christi Watershed · April 4, 2015

Foyle’s War • Best Clips

Foyle’s War excerpts

Jeff Ostrowski · April 4, 2015

PDF Download: Organ Accompaniment to “Et Valde Mane” • 1955 Easter Vigil

A thing desired by many!

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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

In the place of liturgy as the fruit of development came fabricated liturgy. We abandoned the organic, living process of growth and development over centuries, and replaced it—as in a manufacturing process—with a fabrication, a banal on-the-spot product.

— ‘Pope Benedict XVI, describing the postconciliar liturgical reforms’

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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