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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

Articles

Jeff Ostrowski · May 5, 2023

PDF Download • “Vespers Accompaniment Booklet” (Fifth Sunday after Easter) — 20 pages

To recruit, teach, inspire, and retain volunteer choir members is no easy task!

Jeff Ostrowski · May 4, 2023

Six (6) Pernicious Hymn Pairings

The current situation is heartbreaking.

Jeff Ostrowski · May 2, 2023

Should Chant Be Accompanied On The Organ?

As late as 1924, Dom Mocquereau mentioned Dom Desrocquettes “whose beautiful and discreet accompaniments I hear every day at Solesmes.”

Follow the Discussion on Facebook

Jeff Ostrowski · April 30, 2023

My Student Singing Byrd Will Make You Weep!

Today we release polyphony by two composers: William Byrd and William Fritz.

Keven Smith · April 29, 2023

Conducting Tip: Use the Whole Body

Are you aware of your legs? And do you know why that matters for a choir conductor?

Follow the Discussion on Facebook

Jeff Ostrowski · April 29, 2023

Photograph • Pope Saint Paul VI Distributes Holy Communion (Kneeling, On The Tongue)

How dare we—who are so sinful—how dare we receive our Lord?

Jeff Ostrowski · April 29, 2023

Introit • “Jubiláte Déo” (3rd Sunday after Easter)

Sung according to the official rhythm of the Catholic Church.

Jeff Ostrowski · April 27, 2023

PDF Download • “English Hymns for Three Voices” (SSA), edited by Dr. Theodore Marier—182 pages

My choir will definitely be using these settings. They’re something many have begged for!

Jeff Ostrowski · April 26, 2023

“1950s Catholicism” • Do We Want It Back?

“I have found, to my astonishment, that Catholics…in their principal churches, do not to this day possess even one Mass setting even tolerably good, or which is not actually distasteful and operatic.” —Felix Mendelssohn (1835)

Daniel Tucker · April 23, 2023

Five Ways to Celebrate the Octave of Pentecost

For most Novus Ordo-going Catholics, myself included, the Octave of Pentecost is no longer officially part of the Church’s liturgical calendar, but here are five fitting ideas for extending the joy of Pentecost throughout the week.

Jeff Ostrowski · April 22, 2023

PDF Download • Draft Copy — “2023 Symposium Booklet” (320 Pages)

I will never forget standing in that green room, waiting to go on stage.

Jeff Ostrowski · April 17, 2023

“I Came From Somewhere” • (So Did You!)

Including a haunting hymn by Flor Peeters for Eastertide.

Jeff Ostrowski · April 14, 2023

“Quasi Modo” • Introit for this coming Sunday.

I’m desperately in need of this book!

Guest Author · April 13, 2023

Gregorian Rhythm Wars • “The Hidden Dactyl”

“Perhaps surprisingly, not one word of three syllables in the ancient Easter sequence ‘Laudes Salvatori voce’ is sung to the rhythm of a dactyl.” —Alasdair Codona

Jeff Ostrowski · April 12, 2023

“Regína Caéli Laetáre” • 18 organ accompaniments

Plainsong sung poorly—in a sluggish, lifeless manner—can leave a bad taste in people’s mouths.

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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

“I vividly remember going to church with him in Bournemouth. He was a devout Roman Catholic and it was soon after the Church had changed the liturgy (from Latin to English). My grandfather obviously didn’t agree with this and made all the responses very loudly in Latin while the rest of the congregation answered in English. I found the whole experience quite excruciating, but my grandfather was oblivious. He simply had to do what he believed to be right.”

— Simon Tolkien (2003)

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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