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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 16, 2021

“Te Deum Laudamus” • Booklet fits on a single page!

Don’t ask me how this booklet works … but it does.

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Jeff Ostrowski · June 15, 2021

Hymn • “Christ is King” (Father Ivor Daniel) + Rehearsal Videos!

“Once there were lost islands, but most of them have been found…”

Jeff Ostrowski · June 15, 2021

14 June 2021 • “From Rehearsal…”

One of our choristers recorded this audio excerpt from a recent rehearsal we had. I know there are certain people on the internet who claim that “proper voice leading & harmonies died with Bach in 1750AD…anything goes these days.” But I could not disagree more with such an assertion. The proper rules of harmony and […]

Jeff Ostrowski · June 14, 2021

1975 • Jerry Brown Vs. William F. Buckley: “Was Thomas Aquinas Liberal or Conservative?”

Ronald Reagan stopped being governor of California in 1975; then Jerry Brown was elected. Bizarrely, Brown ended his final term in 2019.

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Jeff Ostrowski · June 11, 2021

“Easy Polyphonic Agnus Dei” • Part 1 of 3

A perfect canon is the hardest thing to compose—and this is one!

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Jeff Ostrowski · June 11, 2021

YouTube • “Latin Mass in Scotland”

We seldom post YouTube videos, and hope our readers will pardon this exception…

Jeff Ostrowski · June 10, 2021

What A Real Catholic Conductor Looks Like

What exactly is “the presence” ??

Jeff Ostrowski · June 9, 2021

Jordan B. Peterson • “My Biggest Regret In Life”

…church musicians will be surprised by this!

Jeff Ostrowski · June 8, 2021

Twelve (12) Tips • “Keeping Choir Members Happy”

Add variety to the singing, so choir members will “take delight” in what they are doing—and they should be “taking delight” in singing praises to God.

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Jeff Ostrowski · June 7, 2021

“Part 2 of 3” • Guerrero Kyrie for Our Lady

This *might* be the most beautiful 45 seconds in music—Father Guerrero’s compositions are truly awe-inspiring!

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Jeff Ostrowski · June 6, 2021

PDF Drafts • Ten (10) Gregorian Chant Litanies

Here’s what I currently have…but several of these draft copies are pretty ugly!

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Jeff Ostrowski · June 4, 2021

They Did Something Bad & Inexplicable • (Documentation Included)

I beg you on my hands and knees to read verses 12-20.

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Jeff Ostrowski · June 3, 2021

3 June 2021 • Re: “Mass of the Angels”

In the past, we have provided thirteen organ accompaniments to Mass VIII (a.k.a. “Missa de Angelis”). Some versions of the KYRIALE use the melody from Sanctus VIII for Agnus VIII also. Dr. Peter Wagner’s 1903 edition of the KYRIALE does this, as we mentioned earlier this month. Please sing through Sanctus VIII and then sing […]

Jeff Ostrowski · June 2, 2021

PDF Download • Organ Accompaniments for “Lauda Sion Salvatorem” (Sequence)

“Man cannot understand this, cannot perceive it; but a lively faith affirms that the change—which is outside the natural course of things—takes place.” (Ladua Sion, v12)

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Jeff Ostrowski · June 1, 2021

1 June 2021 • Unsure of Author

The editors of this 1667AD Missale Romanum weren’t sure who wrote the VEXILLA REGIS hymn, so they wrote this in the margin. (To be fair, the original text by Bishop Fortunatus was greatly altered under Pope Urban VIII.)

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Corpus Christi Watershed

President’s Corner

    Simplest “Agnus Dei” Ever Published
    Our choir is on break during the month of July. I needed a relatively simple “Agnus Dei,” so I composed this setting for organ & voice in honor of Saint René Goupil. It has been called the simplest setting ever composed. I love CARMEN GREGORIANUM (“Gregorian Chant”), especially the ALLELUIAS, INTROITS, and COMMUNION ANTIPHONS. That being said, some have pointed out that certain sections of the Kyriale aren’t as strong as the Graduale or Vesperale. There’s a reason for this—but it would be too complicated to explain at this moment.
    —Jeff Ostrowski
    14th Sunday in Ordinary Time (Year C)
    Our choir is on break during the month of July. However, on the feasts website, the chants have been posted for the 14th Sunday in Ordinary Time (Year C), which is this coming Sunday: 6 July 2025.
    —Jeff Ostrowski
    Bugnini’s Statement (6 November 1966)
    With each passing day, more is revealed about how the enemies of the liturgy accomplished their goals. For instance, Hannibal Bugnini deeply resented the way Vatican II said Gregorian Chant “must be given first place in liturgical services.” On 6 November 1966, his cadre wrote a letter attempting to justify the elimination of Gregorian Chant with this brazen statement: “What really gives a Mass its tone is not so much the songs as it is the prayers and readings.” Bugnini’s cadre then attacked the very heart of Gregorian Chant (viz. the Proprium Missae), bemoaning how the Proprium Missae “is completely new each Sunday and feast day.” There is much more to be said about this topic. Stay tuned.
    —Jeff Ostrowski

Quick Thoughts

    Pope Pius XII Hymnal?
    Have you ever heard of the Pope Pius XII Hymnal? It’s a real book, published in the United States in 1959. Here’s a sample page so you can verify with your own eyes it existed.
    —Corpus Christi Watershed
    “Hybrid” Chant Notation?
    Over the years, many have tried to ‘simplify’ plainsong notation. The O’Fallon Propers attempted to simplify the notation—but ended up making matters worse. Dr. Karl Weinmann tried to do the same in the time of Pope Saint Pius X by replacing each porrectus. You can examine a specimen from his edition and see whether you agree he complicated matters. In particular, look at what he did with éxsules fílii Hévae.
    —Corpus Christi Watershed
    Antiphons Don’t Match?
    A reader wants to know why the Entrance and Communion antiphons in certain publications deviate from what’s prescribed by the GRADUALE ROMANUM published after Vatican II. Click here to read our answer. The short answer is: the Adalbert Propers were never intended to be sung. They were intended for private Masses only (or Masses without music). The “Graduale Parvum,” published by the John Henry Newman Institute of Liturgical Music in 2023, mostly uses the Adalbert Propers—but sometimes uses the GRADUALE text: e.g. Solemnity of Saints Peter and Paul (29 June).
    —Corpus Christi Watershed

Random Quote

“The unity of language in the liturgy is so great a treasure for the Church that no advantage could compensate for its demise.”

— Dom Anselmo Albareda (2 January 1953), Father Nicola Giampietro, page 249

Recent Posts

  • New “Latin/English Missal” for the Novus Ordo
  • Simplest “Agnus Dei” Ever Published
  • Bishop François Charrière Vs. Hannibal Bugnini
  • 14th Sunday in Ordinary Time (Year C)
  • “My First Year with the Latin Mass” • A Music Director’s Perspective

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