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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 28, 2024

MONTH OF SEPTEMBER — “Reminder”

Each day I speak to folks who have followed our blog for years but (somehow) don’t realize we publish a free newsletter. Please subscribe to it! Simply scroll to the bottom of any blog article and enter your email address. We have no endowment, no major donors, no savings, and refuse to run annoyong ads. Therefore, […]

Jeff Ostrowski · August 27, 2024

When Teaching a Polyphony for the First Time, Use This Three-Voice Piece

The Solfège has already been added, and we made magnificent rehearsal videos for you!

Jeff Ostrowski · August 22, 2024

The Very Least We Can Do!

Today I must ask the infamous question… (ducks)

Jeff Ostrowski · August 20, 2024

“Entrance Chant” • For Sunday (1-Sep-2024)

Coming up fast is Sunday, 1 September 2024, which is the 22nd Sunday in Ordinary Time. Here is the PDF file of the ENTRANCE ANTIPHON—in Gregorian notation on five lines—which we’ll be singing. You can also download this organ accompaniment which corresponds to that file. If you’re somebopdy who enjoys rehearsal videos, you can listen […]

Jeff Ostrowski · August 20, 2024

“The Very Best 42 Seconds of Gregorian Chant”

Fulton J. Sheen, Saint John Mary Vianney, and more!

Jeff Ostrowski · August 19, 2024

“Our Father” • (Arr. for 3 Voices)

This tune has many names such as “Psalm 112” and “Old Hundred Twelfth.”

Jeff Ostrowski · August 19, 2024

Must This Be Accompanied?

The age-old question—will it ever be resolved?

Jeff Ostrowski · August 17, 2024

Music List • (20th Sund. Ordinary Time)

This coming Sunday is 18 August 2024.

Jeff Ostrowski · August 15, 2024

Music List • “Assumption” (15 August)

Several readers expressed interest in seeing my music list for the Assumption (15 August). You will notice the COMMUNION HYMN is a special version of “Ave Maris Stella” in English and Spanish. Our Mass on the Assumption was Tri-Lingual: Latin, English, and Spanish. Here’s the organ accompaniment (five pages) for that hymn. Furthermore, those who […]

Jeff Ostrowski · August 14, 2024

“Missa de Angelis” • Gloria

Feel free to download this PDF file containing GLORIA VIII (“Mass of the Angels”) harmonized by the great Belgian organist: Flor Peeters.

Jeff Ostrowski · August 14, 2024

Assumption Resp. Psalm (in Spanish)

Responsorial Psalm in Spanish for the feast of Our Lady’s Assumption, 15 August.

Jeff Ostrowski · August 13, 2024

15 August • “Our Lady’s Assumption”

Jeff shares a ‘quick thought’ regarding the topic of the sacred liturgy.

Jeff Ostrowski · August 9, 2024

Music List • (19th Sund. Ordinary Time)

This coming Sunday (11 August 2024) is the 19th Sunday in Ordinary Time, Year B. Some have expressed interest in seeing my “ORDER OF MUSIC.” If such a thing be appealing to you, it can be downloaded as a PDF file.

Jeff Ostrowski · August 6, 2024

MONTH OF AUGUST • “Reminder”

Each day I speak to folks who have followed our blog for years but (somehow) don’t realize we publish a free newsletter. Please subscribe to it! Simply scroll to the bottom of any blog article and enter your email address. We have no endowment, no major donors, no savings, and refuse to run annoyong ads. Therefore, […]

Jeff Ostrowski · August 6, 2024

“Reader Feedback” • 6 August 2024

Mrs. J.M. writes to us from Manassas, Virginia: “I’m thrilled you are offering this scan by the Sisters of the Most Precious Blood in O’Fallon, Missouri! Years ago I wrote to the sisters and one sent me a copy of all the booklets and cds. I have been such an admirer of Msgr Hellriegel’s work!”

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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

“There are no hymns, in this sense, till the fourth century; they were not admitted to the Roman office till the twelfth. No Eastern rite to this day knows this kind of hymn. Indeed, in our Roman rite we still have the archaic offices of the last days of Holy Week and of the Easter octave, which—just because they are archaic—have no hymns.”

— Adrian Fortescue (25 March 1916)

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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