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Corpus Christi Watershed

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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 · June 12, 2026

PDF Download • “Simple Organ Interludes for Use in the Catholic Church” (108 pages)

In spite of their simplicity—“manuals only” mainly—I find several of them exceptionally beautiful.

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Jeff Ostrowski · June 11, 2026

Time and Again We Are Asked…

(1880s) Time and again we are asked: “Is the Gregorian chant to be accompanied by the organ?”

Jeff Ostrowski · June 10, 2026

“Citation Needed” • Dom Foote of ICEL

Father Basil Foote, OSB, served on the Music Sub-Committee of the “International Commission on English in the Liturgy” (ICEL).

Jeff Ostrowski · June 9, 2026

“Should the People Sing in Parts?” • Weighing the Case for SATB Hymnals in the Pews

A normal person would respond: “There are many television shows; to which do you refer?”

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Jeff Ostrowski · June 8, 2026

Revealed • “Answer to the Riddle”

Nobody was able to correctly guess this ‘rubrical riddle’—so here’s the answer.

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Jeff Ostrowski · June 6, 2026

Music List • “Corpus Christi” (Year A)

The 28-page Singers’ Booklet is included. Our children’s choir will join us for this Mass.

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Jeff Ostrowski · June 4, 2026

PDF Download • 35 musical scores for “Lauda Sion Salvatorem” • (Corpus Christi Sequence)

Including many different organ accompaniments!

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Jeff Ostrowski · June 2, 2026

Rare! Rare! Rare! • “Australian Hymnal” (Roman Catholic) from 1942 • By Father Percy Jones

These 3-voice Gregorian Chant harmonizations (from Spain and Australia) are certainly among the rarest we’ve ever posted.

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Jeff Ostrowski · June 1, 2026

“Reminder” — Month of June (2026)

Since a new month has arrived, it’s my pleasure to remind you that…

Jeff Ostrowski · June 1, 2026

PDF Download • “Rubric Challenge”

So far, nobody has guessed correctly. (Challenge posted a few weeks ago.)

Jeff Ostrowski · May 31, 2026

“CCW Subscriptions” • (Update — 31 May 2026)

We recently switched to a ‘subscription model’ for our website.

Jeff Ostrowski · May 28, 2026

PDF Download • “Singer’s Booklet: Trinity Sunday”

Three “indispensable items” for a successful parish music program are discussed.

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Jeff Ostrowski · May 27, 2026

Music List • “Trinity Sunday” (Year A)

Readers have expressed interest in examining my “music list” for this coming Sunday.

Jeff Ostrowski · May 26, 2026

“Entrance Chant” • Feast of Corpus Christi

Very difficult to imagine a more gorgeous mode than Mode 7.

Jeff Ostrowski · May 25, 2026

Vanishingly Rare! • 1955 “Organ Accompaniment” (Mainz Diocese) — 328 Page PDF

The work that went into creating this book is unfathomable: Hymns, Gregorian Chant, Vespers, Psalmody, and more!

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Corpus Christi Watershed

President’s Corner

    Absolutely ‘Perfect’ Voice-Leading?

    This brief passage seems (in my humble opinion) to be a delightful specimen.

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    —Jeff Ostrowski
    Calling Dr. Weaver!

    A remarkable exposition of the “mora vocis” (published in 1953 in the Netherlands) which doesn’t shy away from a certain item!

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    —Jeff Ostrowski
    SLANE • “Simplified” Keyboard Arr.

    Do you know ‘SLANE’ the hymn tune?

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    —Jeff Ostrowski

Quick Thoughts

    ‘Ould’ But Not Good
    Dom Samuel Gregory Ould (note the spelling) was a Benedictine monk at FORT AUGUSTUS ABBEY in Scotland. As musician, organist, and composer, Dom Ould was highly regarded. Moreover, he was considered an authority on Gregorian Chant. But not everything found in an old book—or, in this case, an “Ould” book—is necessarily praiseworthy. Consider this page from Dom Ould’s hymnal. Do you see the rhymes? They offend severely by ABR (“Abuse By Reuse”) and are utterly predictable. In my recent article—Two Ways to Defile a Hymn—I addressed this topic.
    —Jeff Ostrowski
    “Reader Feedback” • 22 June 2026
    A reader wrote to us from Virginia: “I really appreciate the 23 harmonizations that you posted on CORPUS CHRISTI WATERSHED for the Daily, Daily, Sing to Mary hymn. I hope to find willing voices in our small Schola Cantorum to try the three-voice version. Carry on, sir! You’re doing the Lord’s work.” While we don’t know this gentleman personally, we note that he earned a Ph.D. (which demonstrates that our blog has something for everybody). 😊
    —Corpus Christi Watershed
    Time and Again We Are Asked…
    John Baptist Singenberger (d. 1924) was a central figure of Catholic Church music. In this utterly fascinating excerpt (Single-Page PDF), Singenberger writes: Time and again we are asked: “Is the Gregorian chant to be accompanied by the organ?” As a young student in Saint Gall, Singenberger befriended SEBASTIAN GEBHARD MESSMER, the future Archbishop of Milwaukee (Wisconsin). The two graduated together in 1861. The school they attended (Saint George’s Seminary) was a “seminary”—but in the older European sense. In other words, it provided a classical education without necessarily leading to ordination. Singenberger remained a layman his whole life, but Messmer was eventually made archbishop—by Pope Saint Pius X—of the very archdiocese in Wisconsin where Singenberger would spend his American career, giving him a powerful ecclesiastical ally.
    —Jeff Ostrowski

Random Quote

The ratio of voices in modern choirs is usually wrong. Basses should be numerically greatest, then altos, then tenors, then sopranos. One good soprano can carry a high “A” against 30 lower voices.

— Roger Wagner

Recent Posts

  • Absolutely ‘Perfect’ Voice-Leading?
  • “The Choirmaster Survey” • Update on 29 July 2026
  • “Progress Report” (With Samples) • Forthcoming Roman Catholic Hymnal In Spanish
  • PDF Download • “Roman Catholic Music in England from 1850–1962” — Lengthy Dissertation (402 pages)
  • Why I Never Write Articles for Corpus Christi Watershed Anymore

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