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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

Chaumonot Composers Group

Jeff Ostrowski · May 5, 2026

“Englished” Gregorian Chant • 5 Considerations

This is the closest I’ve come to putting down on paper exactly what I heard in my head.

Jeff Ostrowski · May 4, 2026

PDF Download • “Organ Accompaniment”

The following declaration will probably smack of “blowing my own horn.”

Jeff Ostrowski · March 13, 2026

PDF Download • Communion (4th Snd. Lent)

There’s something irresistible about this tone.

Jeff Ostrowski · February 27, 2026

Music List • (2nd Sunday of Lent)

Readers have expressed interest in examining my “music list” for this coming Sunday.

Jeff Ostrowski · February 17, 2026

Music List • (1st Sunday of Lent)

Readers have expressed interest in examining my “music list” for this coming Sunday.

Jeff Ostrowski · October 18, 2025

Fulton J. Sheen + this Sunday’s “Entrance Chant”

Gregorian melodies ‘stick’ in one’s memory in a way that’s both marvelous and surprising.

Jeff Ostrowski · September 26, 2025

PDF Download • Communion (26th Sn. Ord.)

This Communion antiphon sparkles with beauty.

Jeff Ostrowski · September 5, 2025

“Entrance Chant” • 23rd (Ordinary Time)

The Communion Chant includes gorgeous verses in fauxbourdon.

Jeff Ostrowski · August 11, 2025

“Entrance Chant” • 21st Sunday Ordin. Time

This “Entrance Chant” is used during liturgical years A, B, and C.

Jeff Ostrowski · May 6, 2025

Beginning a Men’s Schola

I feel like we have a great start…

Jeff Ostrowski · May 2, 2025

Communion (3rd Sunday of Easter)

This piece is sung by either all men or all women.

Jeff Ostrowski · April 15, 2025

PDF Download • Exceedingly Rare! — “The Torn Tunic” (122 pages) … published in 1967

Is Tito Casini correct that vernacular plainsong is a “sin against nature?”

Jeff Ostrowski · April 11, 2025

PDF Download • “Communion” (Holy Thursday)

Its verses are quite beautiful.

Jeff Ostrowski · April 9, 2025

PDF Download • “Offertory” (Palm Sunday)

Some believe that “joyful” texts sound happy in Gregorian Chant and “sad” texts sound mournful.

Jeff Ostrowski · January 24, 2025

Only Every Three Years…

Communion antiphon for the 3rd Sunday in Ordinary Time (Year C).

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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

“The sacrificial death of Jesus Christ the High Priest on Calvary is and will remain the basis for the active participation of the faithful in the liturgy. Membership in the Church, which is brought about by valid baptism, makes one a part of the Mystical Body of Christ, THE PRIEST, to whose priesthood one is interiorly conformed through the baptismal character.”

— “Divini Cultus Studium” (Dr. Robert A. Skeris, 1990)

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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