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Corpus Christi Watershed

Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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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 · September 19, 2015

Musical Resources • 17th Sunday after Pentecost (Extraordinary Form)

“Very humbly, O Lord, we implore of thy majesty, that the holy mysteries we are celebrating … save us from transgressing in the time to come …”

Jeff Ostrowski · September 19, 2015

“Agnus Dei” For Three Voices • Guillaume Dufay

…including a digression on why choirs hate Solfège.

Jeff Ostrowski · September 16, 2015

“Live” Recording Of Polyphonic Kyrie VIII

Last Sunday we sang a beautiful composition by Richard Rice.

Jeff Ostrowski · September 16, 2015

“The songs and hymns presently in use need to be reconsidered.”

“…it is important to avoid musical forms which, because of their profane use, are not conducive to prayer.”

Jeff Ostrowski · September 14, 2015

Fr. Jonathan Morris, Pit Bull Attack, & More

What you didn’t know about Fr. Jonathan Morris…

Jeff Ostrowski · September 10, 2015

Musical Resources • 16th Sunday after Pentecost (Extraordinary Form)

“May thy grace … cause us to be zealous at all times in the doing of good works.”

Jeff Ostrowski · September 8, 2015

Video Demonstration • “Do Choral Vowels Matter?”

Can you see the difference? Can you hear the difference?

Jeff Ostrowski · September 7, 2015

A New Edition Of The 1962 Missal?

Download these Propers for Saint Pio of Pietrelcina—according to the 1962 Missale Romanum!

Jeff Ostrowski · September 5, 2015

“Wearing The Cassock” • A Bishop Weighs In

“I think that all of us clerics should rethink our choice of clothing…” —Bishop René H. Gracida

Jeff Ostrowski · September 3, 2015

Rehearsal Videos • “Jesu Dulcis Memoria”

I first sang this marvelous piece as a freshman in college, under Dr. James F. Daugherty.

Jeff Ostrowski · September 2, 2015

Musical Resources • 15th Sunday after Pentecost (Extraordinary Form)

“May thine abiding loving-kindness, O Lord, cleanse and fortify thy Church…”

Jeff Ostrowski · August 29, 2015

The Ordinary Form’s Incredible Freedom

Here’s a chart with rubrics from the 1974 “Graduale” translated into English.

Jeff Ostrowski · August 27, 2015

Be Amazed By This Two-Minute Clip About Cathedrals!

Astounding video about how the Amiens Cathedral was saved by a medieval “iron band-aid.”

Jeff Ostrowski · August 26, 2015

Musical Resources • 14th Sunday after Pentecost (Extraordinary Form)

“Reconciled for evermore to thy Church, do thou watch over her, O Lord…”

Jeff Ostrowski · August 26, 2015

PDF Download • Rossini’s “Canticum Novum” (1935)

A Collection of 115 Motets and Hymns, with an Easy Mass for Two Equal Voices.

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Corpus Christi Watershed

President’s Corner

    PDF Download • “Organ Accompaniment”
    Over the past few years, I’ve been harmonizing all the vernacular plainsong Introit settings by the CHAUMONOT COMPOSERS GROUP. This coming Sunday—10 May 2026—is the 6th Sunday of Easter (Year A). The following declaration will probably smack of “blowing my own horn.” However, I’d rank this accompaniment as my best yet. In this rehearsal video, I attempt to sing it while simultaneously accompanying myself on the pipe organ. The musical score [for singers] as well as my organ accompaniment can be downloaded free of charge from the flourishing feasts website.
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 4 May 2026
    A few days ago, the CORPUS CHRISTI WATERSHED Facebook page posted this Gregorian Chant quiz regarding a rubric for the SEQUENCE for the feast of Corpus Christi: “Lauda Sion Salvatórem.” There is no audience more intelligent than ours—yet surprisingly nobody has been able to guess the rubric. Drop me an email with the right answer, and I’ll affirm your brilliance to everyone I encounter!
    —Jeff Ostrowski
    “Rare Photographs” • Hannibal Bugnini
    On 2 September 2025, we included in this article extremely rare photographs of Archbishop Hannibal Bugnini taken in Iran circa 1979. Bugnini had initially been banished by the pope to Uruguay, but he refused to obey. [This is interesting, since Bugnini relied upon ‘blind obedience’ when it came to modifications of the ancient liturgy.] After he refused to obey the order from the pope, Hannibal Bugnini was banished to Iran. You can also watch a short video of Hannibal Bugnini in Iran, dated 10 November 1979. That’s about a week after the USA embassy hostage crisis began in Tehran, and Pope Saint John Paul II had sent the leader of the Iranian Revolution a special letter.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of May (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    Simplified Version • “Canon in D” (Pachelbel)
    I published an article on 11 November 2023 called Wedding March For The Lazy Organist, which rather offhandedly made reference to a simplified version I created in 2007 for Pachelbel’s Canon. I often use it as a PROCESSIONAL for weddings and quinceañeras. Many organists say they “hate” Pachelbel’s Canon. But I love it. I think it’s bright and beautiful. I created that ‘simplified version’ for musicians coming to grips with playing the pipe organ. It can be downloaded as a free PDF if you visit Andrea Leal’s article dated 15 August 2022: Manuals Only: Organ Interludes Based on Plainsong. Specifically, it is page 84 in that collection—generously offered as a free PDF download. Johann Pachelbel (d. 1706) was a renowned German organist, violinist, teacher, and composer of over 500 works. A friend of Bach’s family, he taught Johann Christoph Bach (Sebastian Bach’s eldest brother) and lived in his house. Those who read Pachelbel’s biography will notice his connection to two German cities adopted as famous hymn tune names: EISENACH and ERFURT.
    —Jeff Ostrowski
    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski

Random Quote

Palestrina wrote two Masses in honor of the Blessed Virgin—one “a 6” before the Council of Trent, consequently with the tropes, and first published in 1570. In 1599 it was republished in Palestrina “Missarum Liber III” with the tropes removed, and in their place the liturgical words of the “Gloria” reiterated.

— Henry Coates

Recent Posts

  • “Reminder” — Month of May (2026)
  • “Englished” Gregorian Chant • 5 Considerations
  • Simplified Version • “Canon in D” (Pachelbel)
  • PDF Download • “Organ Accompaniment”
  • “Gregorian Chant Quiz” • 4 May 2026

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