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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

Andrew Leung · November 12, 2015

Sistine Chapel Choir has made Great Improvement

The Sistine Chapel Choir is sounding like a British Boys’ Choir in their new CD

Jeff Ostrowski · November 11, 2015

Stunning New Collection Of English Propers

This book of organ accompaniments by John Ainslie covers every season, including ordinary time.

Dr. Alfred Calabrese · November 11, 2015

The Sacral Language of Liturgiam Authenticam as Applied to Choral Diction

The Church has its own language and its own culture. Are you a native speaker?

Dr. Lucas Tappan · November 10, 2015

Don’t Fall For It

“God has no grandchildren. Every generation must be a first generation follower of Christ.”

Jeff Ostrowski · November 9, 2015

The Only “Credential” That Matters

“They should have been more offended by the Romanian doctor…” —Fr. George Rutler

Fr. David Friel · November 8, 2015

Liturgical Happenings at Notre Dame

Divine Liturgy and a new pipe organ

Jeff Ostrowski · November 7, 2015

Musical Resources • 23rd Sunday after Pentecost (Extraordinary Form)

“Remit, we beseech Thee, O Lord, the sins of Thy people…”

Veronica Brandt · November 7, 2015

Chore wars and maintaining motivation

Setting up choir folders would have to rank 50XP and 30 gold pieces with a 50% chance of battling a carnivorous ring binder to gain a rare fragment of an illuminated manuscript.

Guest Author · November 7, 2015

Sermon on Poor Souls • Based on Wisdom 2:23—3:9

A guest article by Fr. Valentine Young, OFM

Jeff Ostrowski · November 7, 2015

Simple 2-Part Canon For Men & Women

You will love what Henri Durieux has done with this hymn melody.

Richard J. Clark · November 6, 2015

The People Deserve Better

Two documents that speak directly to the issue of liturgical experimentation and abuse.

Andrew Leung · November 5, 2015

Active Participation in the Traditional Latin Mass

2 Churches demonstrate active participation in the Tridentine Mass.

Jeff Ostrowski · November 5, 2015

Liturgical Press Has An “Oops” Moment

“If we had known what the prayers really said, we would not have wanted to pray them any longer.” —Paul Inwood

Dr. Lucas Tappan · November 3, 2015

My Personal Lesson Plan for Training Probationers

Here is the entire set of lesson plans I use for training our Probationers.

Fr. David Friel · November 3, 2015

Trination on All Souls: My Thoughts

Having invited reader input the other day, I offer now my own opinion.

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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

“One of his most cherished wishes was to promote congregational singing wherever possible, for he held it to be most instructive for people of all classes and a powerful means of arousing an intelligent interest in the beauties of our sacred liturgy, especially in regard to the holy Sacrifice of the Mass. He loved to dwell in this respect upon the remarkable results achieved in parishes where the congregation had been taught to sing correctly the different portions of the Mass in plain chant.”

— Cardinal Merry del Val, speaking of Cardinal Sarto

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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