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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 · December 2, 2024

Which Gospel Acclamations?

Some have asked which version…

Jeff Ostrowski · November 26, 2024

“Entrance Chant” • Immaculate Conception

This Introit is in mode iii, which some consider the most beautiful.

Jeff Ostrowski · November 26, 2024

PDF Download • “Entrance Chant” for the Feast of the Immaculate Conception (8 December)

What is he talking about? Where can I go to hear these “aesthetically superior” interpretations? Where can they be found?

Jeff Ostrowski · November 25, 2024

How Sharp Are Your Eyes?

The feast of the Immaculate Conception contains a typo.

Jeff Ostrowski · November 22, 2024

“Music List” • (Christ the King Sunday)

Readers have expressed interest in perusing the “music list” I’ve prepared for this coming Sunday.

Jeff Ostrowski · November 20, 2024

PDF Download • “Entrance Chant” for this Coming Sunday (Christ the King) — 34th in Ordinary Time

Including three separate points on Dom Combe’s shameful and defamatory statement.

Jeff Ostrowski · November 19, 2024

“Entrance Chant” • Christ the King

The feast of Christ the King—a completely modern feast—was added in 1925.

Jeff Ostrowski · November 19, 2024

“Reader Feedback” • 19 November 2024

“I’m currently gathering materials for a newly ordained priest…”

Jeff Ostrowski · November 18, 2024

High Resolution Scan • “Missale Romanum” (1857)

This rare missal from 1857 contains some musical notes.

Jeff Ostrowski · November 16, 2024

“Music List” • (33rd Sund. Ordinary Time)

Readers have expressed interest in perusing the “music list” I’ve prepared for this coming Sunday.

Jeff Ostrowski · November 15, 2024

Lectionary Errors

Why even mention such a thing? Everybody makes mistakes, right?

Jeff Ostrowski · November 14, 2024

PDF • SATB Enhancement (“Our Father”)

“As the congregation sings their part, the choir “enhances” them with polyphony. This is genius!” — Veronica Moreno

Jeff Ostrowski · November 12, 2024

PDF Download • “Entrance Chant” for this Coming Sunday (33rd Sunday in Ordinary Time)

The sixth mode is sometimes the “peaceful” mode.

Jeff Ostrowski · November 12, 2024

“Entrance Chant” • Sunday (17 Nov. 2024)

This Introit is in the sixth mode (known as the “peaceful” mode).

Jeff Ostrowski · November 12, 2024

Internet Trolls + Cardinal Merry Del Val

We sometimes receive messages which…

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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

“The council did not say Latin should be abolished. It said Latin should be used. […] While at Ecclesia Dei, I once received a letter from a chancery office in the United States, asking me if I didn’t know that the council had abolished Latin!”

— Cardinal Mayer, Prefect (1985–1988) of the Vatican’s Congregation for Divine Worship

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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