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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

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 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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Jeff Ostrowski · January 26, 2020

“The old man carried the Child, but the Child led the old man.”

The Antiphon for First Vespers of the Feast of the Purification (February 2nd) is beautiful: “The old man carried the Child, but it was the Child who was guiding the old man. The Virgin bore the Child, and after child-bearing was virgin still: whom she bore, him she adored.” —Senex púerum portábat, puer autem senem […]

Jeff Ostrowski · January 23, 2020

A quote from Fr. Valentine Young

I had one brother who was out of the church for quite a few years. When my mother was asked, “Did she worry about him?” I remember her answer: “I don’t worry about him; I just pray for him.” She left that in God’s hands. My mother did not live to see her son return […]

Jeff Ostrowski · January 23, 2020

Extremely Rare! • 1908 Solesmes Graduale (PDF Download)

I’ve been searching for this book for twenty years! • For the first time in history, the Graduale Romanum from 1908 (with Solesmes rhythmic markings) has been scanned and uploaded • Includes copious and detailed information about the rhythm of the Editio Vaticana (“Vatican Edition”) you won’t find anywhere else+

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Jeff Ostrowski · January 23, 2020

“Theoricam practicamque”

In a book printed by Solesmes Abbey in 1902, “Kyrie Rex Genitor” is also called Theoricam practicamque. Can anyone explain why? And how does that translate into English? “Theoricam practicamque vitam regens Deus Pater.”

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Corpus Christi Watershed

President’s Corner

    PDF Download • “Organ Accompaniment”
    Over the past few years, I’ve been harmonizing all the vernacular plainsong Introit settings by the CHAUMONOT COMPOSERS GROUP. This coming Sunday—10 May 2026—is the 6th Sunday of Easter (Year A). The following declaration will probably smack of “blowing my own horn.” However, I’d rank this accompaniment as my best yet. In this rehearsal video, I attempt to sing it while simultaneously accompanying myself on the pipe organ. The musical score [for singers] as well as my organ accompaniment can be downloaded free of charge from the flourishing feasts website.
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 4 May 2026
    A few days ago, the CORPUS CHRISTI WATERSHED Facebook page posted this Gregorian Chant quiz regarding a rubric for the SEQUENCE for the feast of Corpus Christi: “Lauda Sion Salvatórem.” There is no audience more intelligent than ours—yet surprisingly nobody has been able to guess the rubric. Drop me an email with the right answer, and I’ll affirm your brilliance to everyone I encounter!
    —Jeff Ostrowski
    “Rare Photographs” • Hannibal Bugnini
    On 2 September 2025, we included in this article extremely rare photographs of Archbishop Hannibal Bugnini taken in Iran circa 1979. Bugnini had initially been banished by the pope to Uruguay, but he refused to obey. [This is interesting, since Bugnini relied upon ‘blind obedience’ when it came to modifications of the ancient liturgy.] After he refused to obey the order from the pope, Hannibal Bugnini was banished to Iran. You can also watch a short video of Hannibal Bugnini in Iran, dated 10 November 1979. That’s about a week after the USA embassy hostage crisis began in Tehran, and Pope Saint John Paul II had sent the leader of the Iranian Revolution a special letter.
    —Jeff Ostrowski

Quick Thoughts

    Simplified Version • “Canon in D” (Pachelbel)
    I published an article on 11 November 2023 called Wedding March For The Lazy Organist, which rather offhandedly made reference to a simplified version I created in 2007 for Pachelbel’s Canon. I often use it as a PROCESSIONAL for weddings and quinceañeras. Many organists say they “hate” Pachelbel’s Canon. But I love it. I think it’s bright and beautiful. I created that ‘simplified version’ for musicians coming to grips with playing the pipe organ. It can be downloaded as a free PDF if you visit Andrea Leal’s article dated 15 August 2022: Manuals Only: Organ Interludes Based on Plainsong. Specifically, it is page 84 in that collection—generously offered as a free PDF download. Johann Pachelbel (d. 1706) was a renowned German organist, violinist, teacher, and composer of over 500 works. A friend of Bach’s family, he taught Johann Christoph Bach (Sebastian Bach’s eldest brother) and lived in his house. Those who read Pachelbel’s biography will notice his connection to two German cities adopted as famous hymn tune names: EISENACH and ERFURT.
    —Jeff Ostrowski
    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski

Random Quote

Soloists are dangerous in any church choir! Their voices frequently do not blend with those of the other singers to form a rich, integrated tone.

— Roger Wagner

Recent Posts

  • Simplified Version • “Canon in D” (Pachelbel)
  • PDF Download • “Organ Accompaniment”
  • “Gregorian Chant Quiz” • 4 May 2026
  • “Rare Photographs” • Hannibal Bugnini
  • “Regina Caeli” • More Than You Wanted To Know

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