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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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Views from the Choir Loft

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 · February 6, 2020

PDF Download • “What Makes A Good Hymn?”

Dr. Terry says: “The melody must be clearly defined, free from triviality and trite clichés, avoiding harmonies that are sugary or sensuous.”

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Jeff Ostrowski · February 5, 2020

Protected: 3rd edition • Saint Edmund Campion Missal

There is no excerpt because this is a protected post.

Jeff Ostrowski · February 4, 2020

PDF Download • “Ave Maris Stella” (Organ Accompaniment)

The 2nd part has blank staves, so you can compose your own harmonies!

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Jeff Ostrowski · February 4, 2020

Could Pope St. Pius X Sing?

“On 12 March 1908, the complete publication of the Roman Gradual was issued by the Vatican Press. On that very day, Dom Pothier solemnly presented the first copy to the Holy Father. A witness of the audience says that Pius X wished to be the first to see the new book; he opened it at […]

Jeff Ostrowski · February 4, 2020

Julius Bas Accompaniment

A very prolific harmonizer of Gregorian chant in the early 20th century was Mr. Julius Bas. He often uses a very strange technique, wherein he employs rests to eliminate the Alto, Tenor, and Bass voices. Consider what he did with “Lumen ad revelationem” here: *  JPEG • Lumen ad revelationem It seems quite lazy, and I’ve […]

Jeff Ostrowski · February 4, 2020

Hitting wrong notes

Fr. Valentine Young, OFM, used to say: “The organist can play 1,000 correct notes and one wrong note—and the only thing people will care about is the wrong note.” Last Sunday I hit some wrong notes, and felt bad. Then I remembered a story about Rudolf Serkin and started to chuckle. Charles Rosen (or was […]

Jeff Ostrowski · February 3, 2020

Silence

Saint Peter (II Peter 3:16) says the writings of Saint Paul are extremely difficult to understand—and I Corinthians 14:34-35 seems an example. But I have something else to say about silence in church: it depends upon the time of day. I have responsibility over four (4) Masses each Sunday, and there are “levels” of silence. […]

Jeff Ostrowski · February 2, 2020

PDF Booklet • Feast of the Purification (2 February)

Better late than never, right?

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Jeff Ostrowski · February 2, 2020

Another Purification “Mystery”…

Re: February 2nd in the EF: The following verse was also removed from the 1962 Missale Romanum. Neither does it appear in the 1962 Graduale Romanum of Solesmes: “Vs. Cum indúcerent púerum Jesum parentes ejus, ut fácerent secúndum consuetúdinem legis pro eo, ipse accépit eum in ulnas suas.” It was deleted from the Antiphon “Respónsum […]

Jeff Ostrowski · February 2, 2020

“Mystery” about the Purification in the Extraordinary Form

From what I can tell, the chant “Exsúrge, Dómine, ádjuva nos”—which formerly was sung while candles were being distributed, toward the end—was removed in 1962. It does not appear in the official 1962 Missale Romanum. Nor does it appear in the 1961 Solesmes Graduale Romanum. The Liber Usualis has it, but it’s well known that […]

Jeff Ostrowski · January 31, 2020

A Traditional—But Bizarre!—Way To Assist At Mass

Just because I’m aware of something that happened in the past doesn’t mean I endorse it.

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Jeff Ostrowski · January 28, 2020

Photos! • Brébeuf Choral Supplement Has Arrived

The Brébeuf hymnal collection is now complete—and it’s truly revolutionary!

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Jeff Ostrowski · January 28, 2020

Pothier’s 1906 “De Caetero” Letter • 3 Translations

“The Catholic tradition cannot be that of any special school, either ancient or modern…” —Abbot Pothier

Jeff Ostrowski · January 28, 2020

Anger at mistakes?

I have a bad habit of getting frustrated when choir members take a long time to learn a particular interval or entrance. But this can be “cured.” It was cured a few weeks ago, when I made a mistake. I was supposed to go down a minor third, but instead I went down a perfect […]

Jeff Ostrowski · January 27, 2020

Photograph • Fr. Valentine w/ Composer Kevin Allen

Please keep Fr. Valentine in your prayers—thank you!

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Corpus Christi Watershed

President’s Corner

    💲 5.00 💵
    Our tiny 501(c)3 nonprofit organization exists solely by generous readers who donate $5.00 per month. We have no endowment; we have no major donors; we run no advertisements; we have no savings. A donor wrote to us: “I so appreciate all you do and have done, and your generosity is unprecedented. I am honored to be able to make a monthly contribution.” Another monthly donor says: “Thank you for everything CC Watershed does. We are able to add so much solemnity to Holy Mass due to the resources made available here.” Can you spare a few dollars each month to help us survive?
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    Dom Pothier • Photo from 1904
    Dom Paul Cagin, in a 1904 publication (L’oeuvre de Solesmes dans la restauration du chant grégorien) made sure to include a beautiful image of Dom Pothier, the legendary abbot of St-Wandrille. Also shown is a very young Dom André Mocquereau. Auguste Pécoul—considered the spiritual “son” of Abbat Prosper Guéranger of Solesmes—wrote as follows on 24 June 1901: “To forestall any confusion, let us remember that there is just one Gregorian notation—that restored, according to the ancient manuscripts, by the eminent Abbot of Saint-Wandrille, Dom Pothier.” ✠
    —Jeff Ostrowski
    PDF • “3-Voice Motet” (Father De Laet)
    I believe 99% of our readers will recognize this hymn tune. Perhaps Father Edgard De Laet should have called it a ‘hymn’ instead of a ‘motet for three voices’—but he’s technically correct, since MOTET is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.” The even verses are for three voices, as you will see if you download the PDF score at #20245. The odd verses may be song a cappella SATB or unison with organ.
    —Jeff Ostrowski

Quick Thoughts

    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
    “Reminder” — Month of January (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. Signing up couldn’t be easier: simply scroll to the bottom of any blog article and enter your email address.
    —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

“The chapter secretary is authorized to write a letter beseeching a royal pardon for Caspar de Cuevas, cathedral sackbut player, who is imprisoned on a murder charge.” [From “The Life of Father Francisco Guerrero.”]

— Sevilla: Chapter Resolution (23 March 1566)

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  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”

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