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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 · 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.

Jeff Ostrowski · August 25, 2015

A Most Astounding “Graduale” From 1909 … On Modern Staves!

University professors don’t sit around wondering whether they should teach the music of Tomás Luis de Victoria or Marty Haugen.

Jeff Ostrowski · August 25, 2015

SATB “Alleluia” By Palestrina • Brief, Easy, & Sumptuous

I dare you NOT to immediately assign this piece to your choir!

Jeff Ostrowski · August 23, 2015

Organ Accompaniment • “Christe Supreme”

When your choir isn’t ready for polyphony…

Jeff Ostrowski · August 22, 2015

The Weirdest Thing About Renaissance Motets

A priest named “Reuschius”…

Jeff Ostrowski · August 19, 2015

Musical Resources • 13th Sunday after Pentecost (Extraordinary Form)

“We have received, O Lord, thy heavenly sacrament…”

Jeff Ostrowski · August 19, 2015

Chabanel Psalms … In Dutch?

The cantors do something I never thought of in this video…

Jeff Ostrowski · August 18, 2015

Improve Your Parish’s Liturgy … Instantaneously!

“Until we are blue in the face, we could repeat what Vatican II said about Gregorian chant…”

Jeff Ostrowski · August 17, 2015

PDF Download • “Mount Mary Hymnal” (1937)

All 255 pages of this famous hymn book can now be downloaded as a PDF.

Jeff Ostrowski · August 13, 2015

Musical Resources • 12th Sunday after Pentecost (Extraordinary Form)

The “Testament of the Spirit” is the new and permanent covenant established by Jesus Christ between God and men.

Jeff Ostrowski · August 12, 2015

Cardinal Sarah’s Powerful Letter Available In English!

“Adoremus Bulletin” has uploaded a translation of the CDW Prefect’s document.

Jeff Ostrowski · August 11, 2015

Evelyn Waugh Requiem Panegyric Preached At Westminster By Fr. Caraman (21 April 1966)

“Evelyn was sad when he read of churches in which the old altar was taken down…”

Jeff Ostrowski · August 11, 2015

Remarkable! • Amiens Cathedral During World War

There’s something scary about this image!

Jeff Ostrowski · August 10, 2015

Carlo Rossini: “Exaltate Deum Hymnal” (1941)

115 Offertories, Motets, and Hymns for SATB choirs.

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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

“Before any seminarian is accepted for ordination, he must not only strive for chastity but actually achieve it. He must already be living chaste celibacy peacefully and for a prolonged period of time—for if this be lacking, the seminarian and his formators cannot have the requisite confidence that he is called to the celibate life.”

— Archbishop Viganò (16 February 2019)

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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