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Corpus Christi Watershed

We’re a 501(c)3 public charity established in 2006. We have no endowment, no major donors, no savings, and run no advertisements. We exist solely by the generosity of small donors.

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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 · March 12, 2021

Re: Music For Two Voices • “Jam Christe Sol Justitiæ”

Here’s something we tried recently, and I’d be grateful to hear your feedback.

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Jeff Ostrowski · March 11, 2021

“Extra” Offertory & Communion Verses in the Saint Edmund Campion Missal (3rd Edition)

Sophia Institute Press has authorized us to release marvelous secrets about the 3rd edition!

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Jeff Ostrowski · March 7, 2021

A Beautiful Lenten Hymn • “How It Sounds”

People were asking how it sounds…so here’s a live recording from last week.

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Jeff Ostrowski · March 5, 2021

4 March 2021 • Can you spare 15 seconds?

Due to Covid-19, California has basically been under “lock down” for 11 months, and these restrictions have had quite a detrimental effect on choral programs. We are frequently limited to just 2-3 singers, on account of regulations by the government and our Archdiocese. However, although the number of singers is quite small, I was struck […]

Jeff Ostrowski · March 4, 2021

Now Online! • “Missale Romanum” (1615 edition)

How ironic that this is being hosted by the Martin Luther University!

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Jeff Ostrowski · March 3, 2021

“Ash Wednesday” • Banned by YouTube after 93,000 Views!

Hurry up! — Download this video before it gets deleted again!

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Jeff Ostrowski · March 3, 2021

3 March 2021 • “A policeman” — really?

According to Monsignor Frederick R. McManus, there were “policemen” serving the Sanhedrin in the time of Our Blessed Lord. Look at this awful translation in the 1966 “Saint Andrew Bible Missal” from 1966. Yuck!

Jeff Ostrowski · February 28, 2021

(Screenshots) • Proving Holy Saturday Took Place In The Morning

Five reasons keeping Holy Saturday in the morning is a good idea.

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Jeff Ostrowski · February 26, 2021

“Homily: Second Sunday of Lent” • Father Valentine Young, OFM

I would not want a gift if it came from somebody who thought he had to give it to me.

Jeff Ostrowski · February 24, 2021

Is This Really The Same Church??

Whoever accompanies this piece on the organ did something—in my humble opinion—very clever!

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Jeff Ostrowski · February 23, 2021

“Old Solesmes” Method • What’s That?

I recently conducted an experiment…with surprising results.

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Jeff Ostrowski · February 17, 2021

PDF Download • “O Sacred Head Surrounded” … placed into Gregorian Chant!

Also provided: an organ accompaniment for “Jam Christe Sol Justitiae” (an ancient Catholic hymn for Lent).

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Jeff Ostrowski · February 16, 2021

PDF Download • “Daily Missal with Vespers for Sundays” by Dom Lefevbre (2,007 pages)

…including news Re: the 3rd edition of the Saint Edmund Campion Missal, scheduled to be released in April.

Jeff Ostrowski · February 16, 2021

Surprising Popularity!

One of our most popular downloads has proven to be the organ accompaniment to “The Monastery Hymnal” (131 pages). This book was compiled, arranged, and edited by Achille P. Bragers, who studied at the Lemmensinstituut (Belgium) about thirty years before that school produced the NOH. Bragers might be considered an example of Belgium “Stile Antico” […]

Jeff Ostrowski · February 16, 2021

15 February 2021 • To Capitalize…?

In the Introit for the 6th Sunday after Pentecost, there is a question regarding whether to capitalize the word “christi.” The Vulgata does not, because Psalm 27 is not specifically referring to Our Lord, but rather to God’s “anointed one.” However, Missals tend to capitalize it, such as the official 1962 Missal and also a […]

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Corpus Christi Watershed

President’s Corner

    Luis Martínez Must Go!
    Sevilla Cathedral (entry dated 13 December 1564): The chapter orders Luis Martínez, a cathedral chaplain, to stay away from the choirbook-stand when the rest of the singers gather around it to sing polyphony—the reason being that “he throws the others out of tune.” [Excerpt from “The Life of Father Francisco Guerrero.”]
    —Jeff Ostrowski
    Urgent! • We Desperately Need Funds!
    A few days ago, the president of Corpus Christi Watershed posted this urgent appeal for funds. Please help us make sure we’re never forced to place our content behind a paywall. We feel it’s crucial that 100% of our content remains free to everyone. We’re a tiny 501(c)3 public charity, entirely dependent upon the generosity of small donors. We have no endowment and no major donors. We run no advertisements and have no savings. We beg you to consider donating $4.00 per month. Thank you!
    —Jeff Ostrowski
    “Booklet of Eucharistic Hymns” (16 pages)
    I was asked to create a booklet for my parish to use during our CORPUS CHRISTI PROCESSION on 22 June 2025. Would you be willing to look over the DRAFT BOOKLET (16 pages) I came up with? I tried to include a variety of hymns: some have a refrain; some are in major, others in minor; some are metered, others are plainsong; some are in Spanish, some are in Latin, but most are in English. Normally, we’d use the Brébeuf Hymnal—but we can’t risk having our congregation carry those heavy books all over the city to various churches.
    —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

“In accordance with the ancient tradition of the Church, institution to the ministries of reader and acolyte is reserved to men.”

— Pope Saint Paul VI (15 August 1972)

Recent Posts

  • Luis Martínez Must Go!
  • Pope Pius XII Hymnal?
  • PDF Download • “Gospel Acclamation” for 29 June (Solemnity of Saints Peter and Paul, Apostles)
  • “Hybrid” Chant Notation?
  • Available! • Free Rehearsal Videos for Agnus Dei “Mille Regretz” after Gombert (d. 1560)

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Corpus Christi Watershed is a 501(c)3 public charity dedicated to exploring and embodying as our calling the relationship of religion, culture, and the arts. This non-profit organization employs the creative media in service of theology, the Church, and Christian culture for the enrichment and enjoyment of the public.

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