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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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Jeff Ostrowski • Article Archive

A theorist, organist, and conductor, Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He completed studies in Education and Musicology at the graduate level. Having worked as a church musician in Los Angeles for ten years, in 2024 he accepted a position as choirmaster for Saint Mary of the Immaculate Conception in Michigan, where he resides with his wife and children. —Read full biography (with photographs).

Jeff Ostrowski · July 23, 2021

Traditionis Custodes • An “Attack” On The Traditional Latin Mass?

Now is certainly not the time for sensationalist language. However…

Jeff Ostrowski · July 20, 2021

“Traditionis Custodes” • Five (5) Brief Reflections

“Deliver us, Lord, from every evil: past, present, and to come.”

Jeff Ostrowski · July 19, 2021

PDF Download • The “1965 Missal” (1,785 pages)

“Truly Perplexing” • Pope Francis’ Motu Proprio

Jeff Ostrowski · July 18, 2021

Restricting the Extraordinary Form? • Cardinal Ratzinger’s Video Interview

“We are today not another Church as 500 years ago; it’s always the same Church.” —Cardinal Ratzinger on EWTN

Jeff Ostrowski · July 17, 2021

Important Reminder from Pope Saint John XXIII

People are talking about “liturgy wars” again…

Jeff Ostrowski · July 17, 2021

“Let Us Take Courage!” • In Spite of Today’s News

“Serve God in that charity and love which cast out fear; such love does not regard merit.” —Saint Bernard

Jeff Ostrowski · July 13, 2021

Hymn Lyrics Which Don’t Fit

If we grow up singing hymns, we’re incapable of judging them—because we’re “too close” to them. People who know and love “Abide with me, fast falls the eventide” probably never realized the first word is one of the most egregious examples of incorrect accentuation. (The correct accent for “abide” is on the second syllable, not […]

Jeff Ostrowski · July 12, 2021

12 July 2021 • FEEDBACK

A reader from Chicago writes: “Your work is exemplary, and these past 15 months have put into clear focus for me just how important Corpus Christi Watershed is as an evangelizing voice in the Church. During this pandemic, we have moved away from the ‘big publisher’ psalters, employing nearly exclusively your settings, which (in my […]

Jeff Ostrowski · July 8, 2021

PT Barnum, Henri Herz, + 1,000 candles

In the annals of pianism, there were some fakers: Vladimir de Pachmann, Ignacy Jan Paderewski, Leopold de Meyer, and Henri Herz. A hilarious story is told by Harold C. Schonberg about Henri Herz, his manager (Bernard Ullman), and 1,000 candles. I think you will enjoy reading it.

Jeff Ostrowski · July 7, 2021

7 July 2021 • “Getting Soft at the End”

We tried something last Sunday. On the final stanza of this Eucharistic hymn, we got softer. I’d love to know your thoughts—does it sound good, or contrived?

Jeff Ostrowski · July 7, 2021

[Live Rec.] • “Do You Know This Eucharistic Hymn?”

Including seven (7) examples of musical diversity.

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Jeff Ostrowski · July 4, 2021

We Urgently Require Funds! • Can You Give $5.00 Per Month?

An urgent letter from the president … please read this!

Jeff Ostrowski · July 3, 2021

PDF Download • “Polyphonic Creed Extension” (Perfect Canon Between Soprano & Alto)

This fabulous technique is common in Germanic countries…

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Jeff Ostrowski · July 2, 2021

Free Online Movie! • “Scarlet and the Black” (1983)

Telling the true story of Monsignor Hugh O’Flaherty, a Catholic priest who saved thousands of lives during WW2.

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Jeff Ostrowski · June 30, 2021

30 June 2021 • “External Solemnities”

A document from 1822 shows that 29 June, the Feast of Saints Peter and Paul, used to be a Holy Day of Obligation in the United States. By 1864 it was no longer a Holy Day of Obligation—but the bishops of the United States were asked to celebrate it “solemnly” on the following Sunday, which […]

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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

By far, the event that caused the biggest increase in requests for indults from the morning Mass requirement was the Second World War. The unusual requirements of providing Mass during wartime led to some unique legislation accommodating the time of Mass. Already in 1940, Pope Pius XII issued a motu proprio addressing the situation of holding Mass in countries where a “Black-out” had been ordered.

— Father Shawn P. Tunink

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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