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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 · February 24, 2025

A Statement That Still Fills Me With Rage

A choir isn’t some sort of fancy “add-on.”

Jeff Ostrowski · February 24, 2025

“Ash Wednesday” • Banned after 93,000 Views!

It would be difficult to imagine “sacred music” more disturbing than this.

Jeff Ostrowski · February 23, 2025

“Attendance Policy” • For Volunteer Catholic Choirs

There’s no application fee this year—so you have nothing to lose!

Jeff Ostrowski · February 20, 2025

PDF Download • “Music List” for the 7th Sunday in Ordinary Time (Year C)

“One may well wonder what the origin is of this new way of thinking and this sudden dislike for the past.” —Pope Saint Paul VI

Jeff Ostrowski · February 18, 2025

PDF Download • “Chabanel Tones”

This PDF file contains the various tones—including organ accompaniment—used for the Chabanel Psalter.

Jeff Ostrowski · February 18, 2025

“Theology of Worship” • Msgr. Robert Skeris (1998)

Mother Angelica asks Monsignor Skeris why liturgical music must be sacred.

Jeff Ostrowski · February 18, 2025

“Reform of the Reform” • Is It Dead or Alive?

In spite of what some claim, the “Reform of the Reform” isn’t dead.

Jeff Ostrowski · February 17, 2025

PDF Download • Common Texts for the Gospel Acclamation (“Alleluia”)

For many years, this situation embarrassed me.

Jeff Ostrowski · February 13, 2025

“Entrance Chant” • 7th Sunday (Ord. Time)

This English adaptation uses mode 5, as does the authentic Gregorian Chant version.

Jeff Ostrowski · February 12, 2025

“Register Today!” • Sacred Music Symposium 2025

A generous benefactor has agreed to cover 50% of the tuition for those who register before a certain date.

Jeff Ostrowski · February 11, 2025

“Reader Feedback” • 11 February 2025

A priest serving in Washington D.C. writes to us…

Jeff Ostrowski · February 10, 2025

The New Lectionary & “Voice of God” Hymns

The sale of indulgenced prayers is immoral. Someday they’ll have to make restitution for this.

Jeff Ostrowski · February 8, 2025

“Reminder” — Month of February (2025)

Since a new month has arrived, it’s my pleasure to remind you that…

Jeff Ostrowski · February 7, 2025

“Music List” • 5th Sunday (Ord. Time)

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

Jeff Ostrowski · February 6, 2025

PDF Download • “Communion Refrain” (Polyphony) for Three Voices — with Psalm 117

This injunction from Archbishop Fulton J. Sheen is crucial for artists.

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Corpus Christi Watershed

President’s Corner

    “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
    PDF • “Communion” (5th Sunday in Ordin.)
    The COMMUNION ANTIPHON for this coming Sunday, 8 February 2026—which is the 5th Sunday in Ordinary Time (Year A)—is truly delightful. You can download the musical score completely free of charge. This text will be familiar to altar boys, because it’s PSALM 42. The Feder Missal makes the following claim about that psalm: “A hymn of a temple musician from Jerusalem: he is an exile in a heathen land, and he longs for the holy city and his ministry in the Temple there. The Church makes his words her own.”
    —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 Pope is not an absolute monarch whose thoughts and desires are law. On the contrary: the Pope’s ministry is a guarantee of obedience to Christ and to his Word. He must not proclaim his own ideas, but rather constantly bind himself and the Church to obedience to God’s Word, in the face of every attempt to adapt it or water it down, and every form of opportunism.”

— ‘His Holiness, Pope Benedict XVI (11 May 2005)’

Recent Posts

  • Pope Paul VI • “Sacrificum Laudis” (15 Aug 1966)
  • “Sanctus VIII” • Organ Accompaniment
  • PDF Download • Sanctus VIII Organ Accompaniment (“Mass of the Angels”)
  • Gorgeous Image of Monks Singing!
  • “Let the Choir Have a Voice” • Jeff Ostrowski’s Essay on Choral Music in the Catholic Mass

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