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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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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 · April 29, 2015

Rare Video • Richard Nixon Meets With Pope Paul VI

Footage taken by John Ehrlichman a 1970s “home video reel.”

Jeff Ostrowski · April 29, 2015

Liturgical Silence—But Not What You Think!

When I was young, I would have tried to argue.

Jeff Ostrowski · April 28, 2015

PDF Download • “The Parish Hymnal” (1957)

“The origins of some are not known due to the long and nearly untraceable popular usage they have enjoyed.” —Gregorian Institute

Jeff Ostrowski · April 27, 2015

Brave Schola Director Posts “Live” Recording • Part 2

We’re having a lot of fun…is that bad?

Jeff Ostrowski · April 27, 2015

PDF Download • “Hymns Of The Roman Liturgy” (Rev. Joseph Connelly, 1955)

“These samples from Connelly make less sense in English than the Latin originals would to a North Korean.” —Msgr. Francis P. Schmitt

Jeff Ostrowski · April 24, 2015

Resources • 3rd Sunday after Easter (1962 Missal)

The recording of the Introit “Jubilate Deo” was created by Jeff Ostrowski—hope it helps!

Jeff Ostrowski · April 24, 2015

Polyphonic “Alleluia” for 3 voices • Morales (†1553)

I’ve always believed it’s a mistake to have all-women alto sections and all-men tenor sections.

Jeff Ostrowski · April 23, 2015

Amazing Opportunity for Los Angeles Catholics

Here’s your chance to meet Fr. John Berg, FSSP Superior General, who’s coming all the way from Switzerland.

Jeff Ostrowski · April 22, 2015

“Proper Of The Mass” (Ignatius Press) • Part 7 of 7

Let’s take a stroll down Memory Lane, shall we?

Jeff Ostrowski · April 20, 2015

Pope Visits Prison: “You could not come to me, so I have come to you.”

1300 criminals were present for Benediction.

Jeff Ostrowski · April 19, 2015

PDF • Organ Accompaniment to the “Vidi Aquam”

A version for the organist composed by Canon Jules Van Nuffel (1883-1953)

Jeff Ostrowski · April 19, 2015

PDF Download • Organ Accompaniment for “Vita Sanctorum”

I’d like to produce my own version, setting all six verses to different harmonizations.

Jeff Ostrowski · April 19, 2015

The One Thing That Unites Church Musicians

“She told the male students that careers in music are only good for mothers who desire to make some extra cash.”

Jeff Ostrowski · April 17, 2015

Resources • 2nd Sunday after Easter (1962 Missal)

Including a lovely Easter piece from the middle ages called “Vita sanctorum.”

Jeff Ostrowski · April 17, 2015

Simple Yet Beautiful Easter Piece You Might Want To Sing This Sunday

The verses come from an Easter poem found in numerous ancient manuscripts.

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Corpus Christi Watershed

President’s Corner

    2-Voice Arrangement for Lent
    Those seeking a two-voice arrangement for LENT and PASSIONTIDE should click here and scroll down. It’s based on number 775 in the Brébeuf Hymnal, with an enchanting melody written by Kevin Allen (the legendary American composer of sacred music). That text—“Pendens In Crucis Cornibus”—is often used for the Feast of our Lady of Sorrows. That link is important because, in addition to the musical score, it provides free rehearsal videos for each individual voice: something volunteer choirs appreciate!
    —Jeff Ostrowski
    “Sanctus VIII” • Organ Accompaniment
    A few days ago, I composed this organ harmonization for SANCTUS VIII. This Mass is traditionally called Missa de ángelis or “Mass of the angels.” In French, it is Messe de Anges. You can evaluate my attempt to simultaneously accompany myself on the pipe organ (click here) while singing the melody. My parish is currently singing this setting.
    —Jeff Ostrowski
    Music List • (5th Sund. Ordinary Time)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for this coming Sunday, 8 February 2026, which is the 5th Sunday in Ordinary Time (Year A). If such a thing interests you, feel free to download it as a PDF file. You will probably notice it isn’t as ‘complete’ or ‘spiffy’ as usual, owing to some difficulties which took place this week.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of Febr. (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
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

“We turn to the East when we stand to pray, since this is where the sun and the stars rise. It is not, of course, as if God were there alone and had forsaken the rest of creation. Rather, when these earthly bodies of ours are turned towards the more excellent, heavenly bodies, our minds are thereby prompted to turn towards the most excellent being, that is, to our Lord.”

— Saint Augustine of Hippo

Recent Posts

  • Fulton J. Sheen • “24-Hour Catechism”
  • 2-Voice Arrangement for Lent
  • Pope Paul VI • “Sacrificium Laudis” (15 Aug 1966)
  • “Sanctus VIII” • Organ Accompaniment
  • PDF Download • Sanctus VIII Organ Accompaniment (“Mass of the Angels”)

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