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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 · August 21, 2018

14th Sunday after Pentecost (Extraordinary Form)

“Now if God so clothe the grass of the field, which is today, and tomorrow is cast into the oven, how much more you, O ye of little faith!”

Jeff Ostrowski · August 20, 2018

“Vatican II Hymnal” (1974) by Terry L. Haws

“It is also tragic to note that the hymnal was officially approved by the music commission of the Archdiocese of Seattle.” —Fr. Joseph Roff

Jeff Ostrowski · August 16, 2018

Rehearsal videos • “Gloria” by Father Victoria

How important is honesty?

Jeff Ostrowski · August 15, 2018

13th Sunday after Pentecost (Extraordinary Form)

“Have regard, O Lord, to Thy covenant, and forsake not to the end the souls of Thy poor.”

Jeff Ostrowski · August 13, 2018

PDF Download • “Leeds Catholic Hymnal” (232 pages)

A hymnal out of print for fifty years has been scanned by Mr. Colin E. Jackson!

Jeff Ostrowski · August 7, 2018

PDF Download • “Sunday Vespers”

…including a failed descant from 1983.

Jeff Ostrowski · July 27, 2018

Remarkable Quote About Low Mass

It’s disturbing to realize that Mass was offered like this in some places.

Jeff Ostrowski · July 26, 2018

Puzzle • “Now Thank We All Our God”

Singular or Plural?

Jeff Ostrowski · July 25, 2018

1934 Footage • Gregorian Chant in Chicago

They sure did sing with gusto in those days!

Jeff Ostrowski · July 23, 2018

“Arundel Catholic Hymns” • Hymns Chosen and Edited by the Duke of Norfolk

“To the man of cultivated taste, they are displeasing—and in some cases even offensive…”

Jeff Ostrowski · July 22, 2018

Brébeuf Hymnal • “Behind the Scenes”

Creating a metrical translation like that, so very literal, is stupefyingly difficult.

Jeff Ostrowski · July 16, 2018

PDF Canon • “Non Nobis Domine” (William Byrd)

This Canon, attributed to William Byrd, was greatly admired by Beethoven and Mozart.

Jeff Ostrowski · July 11, 2018

Rehearsal videos • “Kyrie” by Josquin des Prez (d. 1521)

Recorded by participants at the 2018 Symposium!

Jeff Ostrowski · July 10, 2018

What Happens When A Choirmaster Gets Sad?

Our profession is not an easy one.

Jeff Ostrowski · July 9, 2018

(Video) • Closing Mass of Symposium 2018

…recorded on a device located at the very back of Church.

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Corpus Christi Watershed

President’s Corner

    Music List • (1st Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I’ve prepared for this coming Sunday—22 February 2026—the 1st Sunday of Lent (Year A). If such a thing interests you, feel free to download it as a PDF file. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the outstanding feasts website alongside the official texts in Latin. I spent an enormous amount of time preparing this ORDER OF MUSIC—because the children’s choir will join us—and some of its components came out great. For example, the COMMUNION ANTIPHON with Fauxbourdon is utterly resplendent, yet still ‘Lenten’.
    —Jeff Ostrowski
    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

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

“One can still have silence even during the Canon, since one is not obliged to recite the Canon audibly at all times. A quieter, less powerful tone of voice will always permit an opportunity for personal, silent prayer.”

— Joseph Cardinal Frings (25-jan-1968), patron of “Consociatio Internationalis Musicae Sacrae” (papal church music association)

Recent Posts

  • “Chant Is Not a Penitential Act” • Lenten Reflection by Daniel Marshall
  • (Ash Wednesday) • Medieval Illumination Depicting the Distribution of Ashes
  • Music List • (1st Sunday of Lent)
  • Fulton J. Sheen • “24-Hour Catechism”
  • 2-Voice Arrangement for Lent

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