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Corpus Christi Watershed

Jesus said to them: “I have come into this world so that a sentence may fall upon it, that those who are blind should see, and those who see should become blind. If you were blind, you would not be guilty. It is because you protest, ‘We can see clearly,’ that you cannot be rid of your guilt.”

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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 · December 14, 2017

3rd Sunday of Advent (3rd of December)

John answered them, saying, “I baptize with water; but there hath stood one in the midst of you, Whom you know not…”

Jeff Ostrowski · December 13, 2017

PDF Download • “Rorate Mass” (13 pages) —Dec 2017

“Let us not be cast into the darkness to burn in flames, but may we share the joy of heaven, seeing the face of God.”

Jeff Ostrowski · December 11, 2017

Advent Piece for 2 Voices

Multi-Track recording created by a high school sophomore.

Jeff Ostrowski · December 8, 2017

PDF Download • Immac. Conception Booklet

“He whom the whole world cannot contain was enclosed in thy womb…”

Jeff Ostrowski · December 7, 2017

“Creator Alme Siderum” (Guerrero)

The famous plainsong tune can be played on a Woofer Guitar.

Jeff Ostrowski · December 6, 2017

Quickest Psalm Tone Ever Created

A nicely done Psalm Tone is preferred to a poorly sung authentic version.

Jeff Ostrowski · December 6, 2017

Holy Purity & Anger

Our seminarians and priests taught us about “captivity of the eyes.”

Jeff Ostrowski · December 5, 2017

Rorate Caeli • “Very Ancient Catholic Song”

This Catholic hymnal was written by a priest named “Police.” (not kidding)

Jeff Ostrowski · December 3, 2017

2nd Sunday of Advent (2nd of December)

Jesus began to say to the multitudes concerning John: “What went you out into the desert to see?”

Jeff Ostrowski · December 1, 2017

360º Footage of Vespers • How cool is this?

Fr. Valentine used to say: “If you don’t blow your own horn, nobody else is going to blow it for you.”

Jeff Ostrowski · November 29, 2017

PDF Download • “How To Serve Mass” (1651)

“Pausing a little, arise, make Adoration to the Sacrament, give the Pax to those present, observe Order of calling, and Years…”

Jeff Ostrowski · November 29, 2017

Msgr. Knox • “Ten Commandments” for Crime Stories

Knox was a founding member of the “Detection Club,” which included Agatha Christie and G. K. Chesterton.

Jeff Ostrowski · November 27, 2017

PBS • “Gregorian Chant at the Seminary”

At the time I’m posting, this video has 355 views—let’s see if we can raise that number!

Jeff Ostrowski · November 27, 2017

40% savings!

Here are some books you might consider…

Jeff Ostrowski · November 25, 2017

PDF Download • “Evening Masses and Days of Obligation” (58 pages)

Permission has been given to post this marvelous 2016 dissertation by Fr. Shawn Tunink.

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Corpus Christi Watershed

President’s Corner

    “Entrance Chant” • 4th Sunday of Easter
    You can download the ENTRANCE ANTIPHON in English for the 4th Sunday of Easter (11 May 2025). Corresponding to the vocalist score is this free organ accompaniment. The English adaptation matches the authentic version (Misericórdia Dómini), which is in a somber yet gorgeous mode. If you’re someone who enjoys rehearsal videos, this morning I tried to sing it while simultaneously accompanying my voice on the pipe organ.
    —Jeff Ostrowski
    Music List • “Repertoire for Weddings”
    Not everyone thinks about sacred music 24/7 like we do. When couples are getting married, they often request “suggestions” or “guidance” or a “template” for their musical selections. I created music list with repertoire suggestions for Catholic weddings. Please feel free to download it if you believe it might give you some ideas or inspiration.
    —Jeff Ostrowski
    Beginning a Men’s Schola
    I mentioned that we recently began a men’s Schola Cantorum. Last Sunday, they sang the COMMUNION ANTIPHON for the 3rd Sunday of Easter, Year C. If you’re so inclined, feel free to listen to this live recording of them. I feel like we have a great start, and we’ll get better and better as time goes on. The musical score for that COMMUNION ANTIPHON can be downloaded (completely free of charge) from the feasts website.
    —Jeff Ostrowski

Quick Thoughts

    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
    When to Sit, Stand and Kneel like it’s 1962
    There are lots of different guides to postures for Mass, but I couldn’t find one which matched our local Latin Mass, so I made this one: sit-stand-kneel-crop
    —Veronica Brandt
    The Funeral Rites of the Graduale Romanum
    Lately I have been paging through the 1974 Graduale Romanum (see p. 678 ff.) and have been fascinated by the funeral rites found therein, especially the simply-beautiful Psalmody that is appointed for all the different occasions before and after the funeral Mass: at the vigil/wake, at the house of the deceased, processing to the church, at the church, processing to the cemetery, and at the cemetery. Would that this “stational Psalmody” of the Novus Ordo funeral rites saw wider usage! If you or anyone you know have ever used it, please do let me know.
    —Daniel Tucker

Random Quote

It’s good that you are in the USA, otherwise who is going to—in the best sense—make music?

— Ignaz Friedman writing to Josef Hofmann (4 January 1940)

Recent Posts

  • Cardinal Prevost (Pope Leo XIV) “Privately Offered the TLM in His Private Chapel”
  • “Entrance Chant” • 4th Sunday of Easter
  • Reader Feedback • Mendelssohn’s “Wedding March” at a Nuptial Mass?
  • Music List • “Repertoire for Weddings”
  • We (Will) Have A Pope!

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