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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 22, 2015

A Serious Problem That Needs To Be Addressed

The accusation by this lady really hurt me; but I’m not sure why…

Jeff Ostrowski · September 22, 2015

Transposed Mode • This Sunday’s Communion

One could also use a Mode VII psalm tone to “solve” the problem … but that just sounds wrong.

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.”

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Corpus Christi Watershed

President’s Corner

    PDF Download • “For Pentecost Sunday”
    Yesterday morning, I recorded myself singing the ENTRANCE CHANT for Pentecost Sunday while simultaneously accompanying myself on the pipe organ. Click here to see how that came out. At the end of the antiphon, there’s a triple Allelúja and I just love the chord at the end of the 2nd iteration. The organ accompaniment—along with the musical score for singers—can be downloaded free of charge at the flourishing feasts website. For the record, the antiphon on Pentecost Sunday doesn’t come from a psalm; it comes from the book of Wisdom.
    —Jeff Ostrowski
    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

Quick Thoughts

    “Thee” + “Thou” + “Thine”
    Few musicians realize that various English translations of Sacred Scripture were granted formal approval by the USCCB and the Vatican for liturgical use in the United States of America. But don’t take my word for it! Here are four documents proving this, which you can examine with your own eyes. Some believe the words “Thine” and “Thou” and “Thee” were forbidden after Vatican II—but that’s incorrect. For example, they’re found in the English translation of the ‘Our Father’ at Mass. Moreover, the Revised Standard Version (Catholic Edition) mentioned in those four documents employs “Thine” and “Thou” and “Thee.” It was published with a FOREWORD by Westminster’s Roman Catholic Archbishop (John Cardinal Heenan).
    —Jeff Ostrowski
    “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

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

  • “Unfair Characterization” • (But Good Question)
  • “Thee” + “Thou” + “Thine”
  • PDF Download • “For Pentecost Sunday”
  • “Reminder” — Month of May (2026)
  • “Englished” Gregorian Chant • 5 Considerations

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