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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 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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Jeff Ostrowski · May 22, 2026

21 Organ Accompaniments • Pentecost Sequence (“Veni Sancte Spíritus”) in Latin and English

These twenty-one (21) keyboard accompaniments for the ‘Golden Sequence’ will hopefully have something for everybody!

Jeff Ostrowski · May 19, 2026

PDF Download • Accompaniment Edition (183 pages) — “Jesuit Hymnal” (Buffalo, New York)

For the first time in history, we release today the accompaniment edition of Father Hacker’s Hymnal.

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Jeff Ostrowski · May 17, 2026

“A New Chapter” • Subscriptions!

A message from the CCW president on 17 May 2026.

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Corpus Christi Watershed

President’s Corner

    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
    Insane Baroque-Era Dissonance!
    The sumptuous melody called “JESU LEIDEN PEIN UND TOD” appears no fewer than three times in the Brébeuf Catholic Hymnal and is harmonized with standard Common Practice Era SATB voice leading and harmonies (which is only natural). However, one who takes the time to examine what Sebastian Bach did with that tune will encounter an incredibly dissonant sound. As far as I’m concerned, there is no more dissonant sound—in the entire Baroque era—than what I highlighted in yellow on that excerpt. Please let me know if you disagree.
    —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

At papal Masses, the regulations against tardiness were more stringent than at Masses celebrated by cardinals or bishops. Giovanni Maria Nanino records that any singer who is not in his place—and in his vestments—by the end of the repetition of the “Introit” will be fined eight vinti. At papal Vespers, the singer who is not present at the “Gloria Patri” of the first psalm pays a fine of fifty balocchi.

— Giovanni M. Nanino (d. 1607), Papal “Maestro di Cappella”

Recent Posts

  • Why I Never Write Articles for Corpus Christi Watershed Anymore
  • Calling Dr. Weaver!
  • “A Catholic Choir Director’s Decalogue” • Jeff’s Personal Odyssey (10 Points)
  • SLANE • “Simplified” Keyboard Arr.
  • “Taking Over an Inner City School Choir” • Rebecca’s Story

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