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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 · January 2, 2021

PDF Download • “No woman shall kiss her child on the Sabbath or fasting day.”

The “Blue Laws” were a series of fanatical laws enacted by the Puritans of the colony of Connecticut…

Jeff Ostrowski · January 1, 2021

“Homily — Feast of Mary, the Mother of God, Years ABC” • Father Valentine Young, OFM

We seem to be sitting around waiting for “that day” when everything in the world, in our country, and in the Church is going to be perfect…

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 27, 2020

“Homily — Feast of the Holy Family, Year B” • Father Valentine Young, OFM

I can speak mainly from my experience with Indians, more specifically the Navajos; their native culture has a great respect and love for marriage and family life.

Jeff Ostrowski · December 23, 2020

PDF Download • “Midnight Mass Musical Plan” (2020)

To show our singers how special our music is, I’ve included ancient MSS for each piece—as well as rehearsal videos.

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 23, 2020

PDF Download • “Creator Alme Siderum” with Organ Accompaniment

The Brébeuf Hymnal provides ancient (Roman Catholic) English translations of this hymn, but Eleanor Parker found versions in Anglo-Saxon!

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Jeff Ostrowski · December 22, 2020

“Improving As Musicians” • Eight Suggestions

Did you know I communicate with dead Catholic composers? I’m not joking.

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Jeff Ostrowski · December 16, 2020

The First Time We’ve Ever Done This Correctly!

Abbot Pothier included a section called “De Ritibus Servandis In Cantu Missae.”

Jeff Ostrowski · December 15, 2020

“Blessing the Bell” • Most Rev’d Alejandro D. Aclan

When a monk hears the bell, he stops whatever he’s doing and immediately goes to prayer. It is the voice of God calling us to pray, to avoid sin, and to forget the things of this world and think of Him.

Jeff Ostrowski · December 13, 2020

“Rorate Mass” (FSSP) • 12 December 2020

Attendance was standing room only. Afterwards, the children presented roses to Mary—as the entire parish prayed the Rosary—and then we consecrated California to Jesus Christ.

Jeff Ostrowski · December 12, 2020

“Homily — 3rd Sunday of Advent, Year B” • Father Valentine Young, OFM

As the Gloria during Mass suggests, we should “thank Him simply because of His great glory.” When is the last time you did that?

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 10, 2020

Offertory Compared • “Ave Maria” (4th Sunday of Advent) vs. “Ave Maria” (Immaculate Conception)

Consider the melody found in “Le Graduel Romain,” published in 1800—nine years before Napoleon Bonaparte kidnapped Pope Pius VII

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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 […]

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Corpus Christi Watershed

President’s Corner

    PDF • Our Lady of Guadalupe (12 Dec.)
    The Responsorial Psalm may be downloaded as a PDF file (organist & vocalist) for 12 December, which is the Feast of Our Lady of Guadalupe. When it comes to the formulary for this Mass, it’s astounding how infrequently it’s included in official books. Prior to Vatican II, one had to search through “supplemental material” printed in the back of hand-missals and graduals. But since 1970, the feast is virtually nonexistent. According to the UNIVERSAL KALENDAR, 12 December is the “Feast of Saint Jane Frances De Chantal, Religious” (Die 12 decembris: S. Ioannæ Franciscæ de Chantal, religiosæ). Why should that feast overpower Our Lady of Guadalupe? In the United States, OLG is celebrated—and I’d assume in Mexico, Central America, South America, and Canada—but, as I said, the Propria Missae are virtually impossible to locate. I possess only three books which mention this feast.
    —Jeff Ostrowski
    Simplified Accompaniment (Advent Hymn)
    Many organists are forced to simultaneously serve as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult. I invite you to download this simplified organ accompaniment (PDF) which in the Father Brébeuf Hymnal is hymn #661: “Come, Thou Long-Expected Jesus” (for ADVENT). I’m toying with the idea of creating a whole bunch of these, to help amateur organists. The last one I uploaded was downloaded more than 2,900 times in a matter of hours—so there appears to be interest.
    —Jeff Ostrowski
    PDF • “Music List” (Immaculate Concep.)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for 8 December 2025, the feast of OUR LADY’S IMMACULATE CONCEPTION. If such a thing interests you, feel free to download it as a PDF file. The fauxbourdon setting of the COMMUNION is exquisite. In Latin, the title of this feast is: In Conceptione Immaculata Beatae Mariae Virginis. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the feasts website alongside the official texts in Latin.
    —Jeff Ostrowski

Quick Thoughts

    Pope Leo XIV on Sacred Music
    On 5 December 2025, Pope Leo XIV made this declaration with regard to liturgical music.
    —Corpus Christi Watershed
    “Translations Approved for Liturgical Use”
    According to the newsletter for USSCB’s Committee on Divine Worship dated September 1996, there are three (3) translations of the Bible which can be used in the sacred liturgy in the United States. You can read this information with your own eyes. It seems the USCCB and also Rome fully approved the so-called NRSV (“New Revised Standard Version”) on 13 November 1991 and 6 April 1992 but this permission was then withdrawn in 1994.
    —Corpus Christi Watershed
    Gospel Options for 2 November (“All Souls”)
    We’ve been told some bishops are suppressing the TLM because of “unity.” But is unity truly found in the MISSALE RECENS? For instance, on All Souls (2 November), any of these Gospel readings may be chosen, for any reason (or for no reason at all). The same is true of the Propria Missæ and other readings—there are countless options in the ORDINARY FORM. In other words, no matter which OF parish you attend on 2 November, you’ll almost certainly hear different propers and readings, to say nothing of different ‘styles’ of music. Where is the “unity” in all this? Indeed, the Second Vatican Council solemnly declared: “Even in the liturgy, the Church has no wish to impose a rigid uniformity in matters which do not implicate the faith or the good of the whole community.”
    —Corpus Christi Watershed

Random Quote

At High Mass the Celebrant is not allowed to proceed with the Offertory while the “Credo” is being sung. Likewise he should not proceed with the Consecration until the singing of the “Sanctus” is completed.

— Father Carlo Rossini (1939)

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  • Simplified Accompaniment (Advent Hymn)

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