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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

President's Corner

Jeff Ostrowski · January 7, 2021

6 January 2021 • Anglicans on Plainsong

A book published by Anglicans in 1965 has this to say about Abbat Pothier’s Editio Vaticana, the musical edition reproduced by books such as the LIBER USUALIS (Solesmes Abbey): “No performing edition of the music of the Eucharistic Psalmody can afford to ignore the evidence of the current official edition of the Latin Graduale, which […]

Jeff Ostrowski · January 2, 2021

2 January 2021 • Temptation

When I see idiotic statements made on the internet, I go nuts. When I see heretics promoted by people who should know better, I get angry. Learning to ignore such items is difficult—very difficult. I try to remember the words of Fr. Valentine Young: “Do what God places in front of you each day.” When […]

Jeff Ostrowski · January 1, 2021

31 December 2020 • “COMITES CHRISTI”

The feasts for Saint Stephen Proto-Martyr (26 December), Saint John the Evangelist The Disciple Whom Jesus Loved (27 December), and the Feast of the Holy Innocents (28 December) seem untouched by any liturgical reforms. These are very powerful feasts—I believe they once possessed octaves—and I believe they could sometimes “overpower” a Sunday feast. The rules […]

Jeff Ostrowski · December 23, 2020

23 December 2020 • A 5th? or 4th?

I have noticed that where the Editio Vaticana has a descending perfect fourth for the Gradual of Christmas Midnight Mass, many ancient manuscripts have a descending perfect fifth, which is pretty cool: Example A — Example B. The Vatican Edition is a CENTO, and never made any claim to be anything other than a CENTO. […]

Jeff Ostrowski · December 10, 2020

“Martinelli’s Letter” (dated 18 February 1910)

My recent post on the repercussion has induced some to ask: “Can we just sing whatever rhythm we want for the Vatican Edition? What about mensuralism? What about Bonvin and Vollaerts?” For those of us who work in the Extraordinary Form, we must follow the rhythm of the Editio Vaticana, and this was addressed in […]

Jeff Ostrowski · December 9, 2020

9 December 2020 • A Cool Tradition

Before the reforms of the “Code of Rubrics” (1961), antiphons at Vespers were abbreviated in a cool way. For example, look at this antiphon, Ecce Veniet (from Vespers on the 4th Sunday of Advent). But that tradition—as far as I know—ended in 1961, with §191 which said: “The whole antiphon is always said before and […]

Jeff Ostrowski · November 30, 2020

30 November 2020 • “Case in point”

The Solesmes rhythmic markings, which often contradict the official rhythm, do such damage to the antiphons of the Divine Office that—in my humble opinion—they should be abandoned. (In reality, this will never happen.) But sometimes, they do great damage to the melody of the Graduale Romanum, and I would offer the Offertory for the 1st […]

Jeff Ostrowski · November 27, 2020

27 November 2020 • ACCENTS

Certain Latin words are constantly mispronounced. For example, Carl Orff’s Carmina Burana is supposed to be pronounced “Cármina” but people frequently pronounce it as “Carmína”—wrong! Another example: Nova organi harmonia is supposed to be pronounced “órgani” but many people erroneously say “orgáni.” A somewhat tricky word is incipit. In Latin, it would be “íncipit” while […]

Jeff Ostrowski · November 20, 2020

20 November 2020 • Epiphany Sequence?

A very interesting Missale from 1759AD has a Sequence for the Epiphany, but I don’t know where one could find the musical notation. The Seqence is called: “Prompto Gentes Animo Ferte Nunc Altissimo Honorem Et Gloriam.”

Jeff Ostrowski · November 19, 2020

18 November 2020 • FEEDBACK

From a priest in the Midwest: “That video by Andrea Leal which explains hymn meters and hymn text exchange is informative and a truly great explanation. Thank you for sending it to me. I hope all is well with you. God bless you as we soon enter into Advent.”

Jeff Ostrowski · November 16, 2020

16 November 2020 • Exciting addition!

By kind permission of the Trustees of the London Oratory, we have added Mæstro Patrick Russill’s outstanding organ accompaniment for “Salve Regina” to the other versions currently available for free PDF download. Patrick Russill needs no introduction among church musicians the world over, and many consider his harmonization the finest of all.

Jeff Ostrowski · November 6, 2020

6 November 2020 • FEEDBACK

The director of music at EWTN wrote to us about the Brébeuf hymnal: “I do believe your hymnal has the best harmonizations available. We have used several of your harmonizations on EWTN. I have recommended to other hymnal editors that they get aligned with Corpus Christi Watershed to improve their harmonizations. Take care.”

Jeff Ostrowski · November 6, 2020

Msgr. Schmitt backs up Rev. Fortescue

My colleague, Andrea Leal, recently posted something extraordinary: an English translation of a NOTITIAE document from 1970 which explains why the reformers did such violence to the ancient Proprium Missæ. The author of that document erroneously claims that Gregorian composers changed the wording for musical purposes, but the real reason Missal and Gradual don’t always […]

Jeff Ostrowski · November 6, 2020

“Polyphonic Credo” during Communion?

It sounds strange to Americans, but a very common European tradition is to sing a polyphonic “Agnus Dei” during the distribution of Holy Communion, famously defended by Cardinal Ratzinger in 1995. Monsignor Francis P. Schmitt wrote about visiting Saint Joseph Oratory in Montreal, and says: “A polyphonic Creed was sung during the distribution of Communion.” […]

Jeff Ostrowski · November 4, 2020

The Best We’ve Done?

Perhaps the most significant item we’ve yet had the honor of producing is an English translation of an extremely rare document from 1970. A member of the Consilium—Father Adalbert Franquesa Garrós—explains why the reformers felt it necessary to destroy most of the ancient Mass propers. In particular, this reformer priest claims that unless verses of […]

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Corpus Christi Watershed

President’s Corner

    Music List • “5th Sunday of Easter” (Year A)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for the 5th Sunday of Easter Sunday—a.k.a. “Dominica V Paschae”—which is 3 May 2026. Please feel free to download it as a PDF file if such a thing interests you. The COMMUNION (“Tanto Témpore Vobíscum Sum”) is rather somber, with awesome fauxbourdon psalm verses. The ENTRANCE CHANT is bright and happy.
    —Jeff Ostrowski
    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

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

“[Sacrosanctum Conclium’s implementation was] horrible, if we judge the debate on the liturgy as we have it today. Very few bishops would be proud to say they had a hand in it. Communion in the hand was never mentioned in the debate, neither was the word table (mensa) to take the place of altar—place of sacrifice… In my opinion the Debate on the Liturgy has been hijacked. The Council was…to reform, not to change completely.”

— Bishop Ignatius Doggett (who took part in Vatican II)

Recent Posts

  • Music List • “5th Sunday of Easter” (Year A)
  • PDF Download • Communion for Sunday
  • “Translating the Bible” • Msgr. Ronald Knox (1953)
  • Season’s End Repertoire
  • PDF Download • “Funeral Procession”

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