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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

President's Corner

Jeff Ostrowski · January 17, 2025

“2-Voice Piece” • For February 2nd

The hymn traditionally sung on the feast of the Purification.

Jeff Ostrowski · January 15, 2025

“Entrance Chant” • 2nd Sunday (Ord. Time)

This English adaptation matches the mode of the authentic Gregorian Chant version.

Jeff Ostrowski · January 14, 2025

Repugnant Rhymes in Hymns

This stuck out like a sore thumb.

Jeff Ostrowski · January 9, 2025

“Music List” • Baptism of the Lord

Readers have expressed interest in perusing the “music list” I prepared…

Jeff Ostrowski · January 8, 2025

“Entrance Chant” • Baptism of the Lord

This English adaptation matches the mode of the authentic Gregorian Chant version.

Jeff Ostrowski · January 6, 2025

Hidden Treasure!

What are you waiting for?

Jeff Ostrowski · January 4, 2025

“Music List” • Feast of the Epiphany

Readers have expressed interest in perusing the “music list” I prepared…

Jeff Ostrowski · January 2, 2025

“Entrance Chant” • Feast of the Epiphany

The authentic Gregorian Chant version begins the same way “Salve, Sancta Parens” begins…

Jeff Ostrowski · January 2, 2025

PDF Download • 129 Pages!

This book—now available as a PDF file—is 129 pages long!

Jeff Ostrowski · January 2, 2025

“Reminder” — Month of January (2025)

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

Jeff Ostrowski · December 30, 2024

Accents Do Matter!

The upcoming feast of the Epiphany gives a good example…

Jeff Ostrowski · December 27, 2024

Year’s End Appeal • “Asking for Help”

As 2024 comes to a close, we could really use even a TINY amount of your generous financial support…

Jeff Ostrowski · December 27, 2024

“Music List” • Feast of the Holy Family

Readers have expressed interest in perusing the “music list” I have prepared for the Feast of the Holy Family.

Jeff Ostrowski · December 25, 2024

“Music List” • Midnight Mass (Christmas)

Readers have expressed interest in perusing the “music list” we used at our Christmas Midnight Mass.

Jeff Ostrowski · December 24, 2024

“Silent Night” • Easy Organ Arrangement

Choirs will ‘pick up’ this piece up with minimal rehearsal time.

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Corpus Christi Watershed

President’s Corner

    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski
    Which Mass?
    In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    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

“In my capacity as the prefect of the Congregation for Divine Worship and the Discipline of the Sacraments, I continue to remind all that the celebration toward the East (versus orientem) is authorized by the rubrics of the missal, which specify the moments when the celebrant must turn toward the people. A particular authorization is, therefore, not needed to celebrate Mass facing the Lord.”

— ‘Robert Cardinal Sarah, 23 May 2016’

Recent Posts

  • Music List • (2nd Sunday of Lent)
  • PDF Download • “Funerals in the Ordinary Form”
  • Extreme Unction
  • Like! Like! Like!
  • Which Mass?

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