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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

Articles

Jeff Ostrowski · September 14, 2023

Traditional Latin Mass with Vernacular (!) Ordinary at High Mass in the 1600s

I will let you in on a secret!

Dr. Charles Weaver · September 13, 2023

A Concert in Honor of William Byrd

The better the voice is, the meeter it is to honour and serve God therewith: and the voice of man is chiefly to be employed to that end.

Jeff Ostrowski · September 13, 2023

Eucharistic Hymn by the Archbishop of Canterbury

Using a favorite melody of Dr. Theodore Marier.

William J. Fritz · September 13, 2023

“Ever Ancient, Ever New” • Sacred Concert in North Florida

“It is even more encouraging when a concert with 𝑡𝑟𝑢𝑙𝑦 𝑎𝑢𝑡ℎ𝑒𝑛𝑡𝑖𝑐 Catholic music is done.” —Mæstro Fritz

Jeff Ostrowski · September 12, 2023

“Can No One Defend This?” • Why Everyone Should Sing From the Official Edition

I can never go back!

Jeff Ostrowski · September 11, 2023

Jeff Ostrowski’s Discovery • (Does Anyone Care?)

Feel free to examine every single page if you doubt what I’m saying!

Cynthia Ostrowski · September 11, 2023

Can a Lens Make a Difference?

My husband tells me this edition (by Dom Pothier’s student) is of monumental importance. I take him at his word.

Dr. Lucas Tappan · September 9, 2023

Lack Choir Boys? • A Foolproof Way to Get Them!

What happened to this masculine presence in all things musical in the United States?

Dr. Alfred Calabrese · September 7, 2023

Dr. Alfred Calabrese on William Byrd’s “Sanctus” • (Mass for Five Voices)

“The Byrd Masses were printed without title pages, and with no reference to a composer. It was too dangerous to do so.” —Dr. Calabrese

Jeff Ostrowski · September 6, 2023

Natalia’s Message • “Explaining The Two Sections!”

If you asked random Catholics to recite in English—without reference to a book—a stanza from the “Tantum Ergo” of Saint Thomas Aquinas, how many do you think could?

Jeff Ostrowski · September 5, 2023

Does It Make Sense to Alphabetize Hymnals?

Perhaps you’re saying to yourself: “Jeff comes across as super ungrateful.”

Matthew Frederes · September 4, 2023

Revealed! • Father Enemond Massé Manuscripts of Sacred Gregorian Chant

Please enjoy this new addition to the website which provides a useful list of manuscripts discussed on this blog, for easy access to the same sources used by the contributors!

Jeff Ostrowski · September 4, 2023

When Others Say You’re “Dumb”

I could give a zillion more examples of my disability.

Jeff Ostrowski · September 2, 2023

Are You A Professional? • (Am I One?)

Including a Eucharistic Hymn (#142) every Catholic should know!

Guest Author · September 1, 2023

Gregorian Rhythm Wars • “The Counter Tradition”

Guest submission (1 September 2023) by Alasdair Codona of Glasgow, Scotland.

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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

“The conciliar norms regarding reform of the liturgy have given the choir’s function greater prominence and importance. The choir is responsible for the correct performance of the parts that belong to it…”

— “Musicam Sacram” (5 March 1967)

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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