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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

“Wild Accompaniment” • Flor Peeters (Kyrie VIII)

Jeff Ostrowski · August 15, 2022

ANY TIMES we have spoken about various items which must be considered before the organist decides on a particular plainsong accompaniment. The choir members matter; the acoustics matter; the director matters; the type of organ matters; and so forth. Flor Peeters—organist at Saint Rumbold’s Cathedral in Belgium—often served as faculty for the famous church music gatherings held at Boys Town (Nebraska) during the summers. When he wrote his Method of Accompanying Plainsong, Baron Peeters was careful to state clearly: “By no means do we claim that the method of accompaniment here set forth is the only true and correct one.” He then gives several examples of what he calls other good systems. Some omit the melody, some are based on quartal and quintal harmonies, and so on.

“Bold” Accompaniment • One example he provides is this accompaniment for Kyrie VIII … and it’s pretty wild. Readers will remember that the KYRIE ELEISON—when sung—has a total of nine invocations. I wasn’t brave enough to use the Peeters accompaniment for the entire thing, so I used it on number 3, number 6, and number 9. Our choir is on break during the summer, but some young ladies came to Mass and sang anyway. See what you think:

The Same Day • On that same occasion, the group sang Hymn #816 from the Brébeuf hymnal, which is called: “Lord Jesus Christ, of Joys and Treasures Rarest.” The text is by Father Dominic Popplewell, FSSP, and the tune is RAYMBAULT. This is an abridged version:

I recently wrote an article vis-à-vis the RAYMBAULT hymn melody.

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

Filed Under: Articles Tagged With: Flor Peeters, Kyrie VIII, Missa de angelis Last Updated: August 15, 2022

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About Jeff Ostrowski

Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He resides with his wife and children in Michigan. —(Read full biography).

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Corpus Christi Watershed

President’s Corner

    PDF Download • Communion for Sunday
    The COMMUNION ANTIPHON with fauxbourdon psalm verses for this coming Sunday (3 May 2026) is elegant and poignant. It’s such a shame it only comes every three years. This piece—along with all the musical scores for this coming Sunday, which is the 5th Sunday of Easter (Year A)—can be downloaded free of charge from the flourishing feasts website. By the way, how is it already 2026?
    —Jeff Ostrowski
    Season’s End Repertoire
    Looking at the REPERTOIRE SHEET until the end of the choral season, I see that I’ve fallen behind schedule. (The last three months have been extraordinarily busy.) As you know, I have been providing organ harmonies for all the ENTRANCE CHANTS—as well as rehearsal videos—and you can see I’m behind where I planned to be. Now I must make up lost ground. However, the choir picks up the ENTRANCE CHANT with ease, so I’m sure it will all work out. My ‘unofficial’ harmonizations are being posted each week at the flourishing feasts website.
    —Jeff Ostrowski
    PDF Download • “Funeral Procession”
    From a mediæval Book of Hours, I was sent this glorious depiction of a Roman Catholic funeral procession by Simon Bening (d. 1561). The image resolution is extremely high. I’m not sure I know of a more beautiful illustration of a mediæval church. And I love how the servers are wearing red and pink cassocks!
    —Jeff Ostrowski

Quick Thoughts

    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
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski

Random Quote

“In accordance with the ancient tradition of the Church, institution to the ministries of reader and acolyte is reserved to men.”

— Pope Saint Paul VI (15 August 1972)

Recent Posts

  • PDF Download • Communion for Sunday
  • “Translating the Bible” • Msgr. Ronald Knox (1953)
  • Season’s End Repertoire
  • PDF Download • “Funeral Procession”
  • Re: The “Correct” Way To Sing Gregorian Chant

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