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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 · October 4, 2024

MONTH OF OCTOBER — “Reminder”

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

Jeff Ostrowski · October 3, 2024

Rhyme Scheme?

Is this a common ‘thing’ when it comes to hymns in Spanish?

Jeff Ostrowski · October 1, 2024

“Entrance Chant” • For Sunday (6-Oct-2024)

This one’s in Mode 4, imitating in an admirable way the authentic Gregorian chant.

Jeff Ostrowski · September 29, 2024

An Anglican “Mess”

If I live to be 100 years old, there’s something I’ll never understand.

Jeff Ostrowski · September 28, 2024

Most Magnificent Plainsong Kyrie?

Here are some of my favorites.

Jeff Ostrowski · September 24, 2024

“Entrance Chant” • For Sunday (29-Sep-2024)

This one’s in Mode 3, imitating the authentic Gregorian chant in a magnificent way.

Jeff Ostrowski · September 19, 2024

Music List • (25th Sund. Ordinary Time)

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

Jeff Ostrowski · September 16, 2024

“Entrance Chant” • For Sunday (22-Sep-2024)

This one’s in Mode 4—and it imitates the authentic Gregorian chant in a magnificent way.

Jeff Ostrowski · September 14, 2024

A Real Advantage!

Before the internet, certain translators could easily “pull the wool over” unsuspecting eyes.

Corpus Christi Watershed · September 13, 2024

Photographic proof that CCW matters!

Some familiar books were spotted in Singapore by our contributor, Andrew Leung, who took that photograph. Those books were printed about thirteen years ago, and recently the third edition was released. The third edition is profoundly resplendent.

Jeff Ostrowski · September 12, 2024

Music List • (24th Sund. Ordinary Time)

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

Corpus Christi Watershed · September 11, 2024

Desperate Appeal • (11-Sep-2024)

On 11 September 2024, the president of CCWatershed released…

Jeff Ostrowski · September 7, 2024

Music List • (23rd Sund. Ordinary Time)

This coming Sunday (8 September 2024) is the 23rd Sunday in Ordinary Time, Year B. Some have expressed interest in seeing my “ORDER OF MUSIC.” If such a thing be appealing to you, it can be downloaded as a PDF file.

Jeff Ostrowski · September 6, 2024

Communion • (23rd Sunday in Ordinary Time)

This coming Sunday (23rd Sunday in Ordinary Time) we’re singing the Communion antiphon in English as adapted by the SISTERS OF THE MOST PRECIOUS BLOOD (O’Fallon, Missouri). Their enormous body of work is usually referred to as The O’Fallon Propers. Click here to download this Communion as a PDF file. (For the record, I couldn’t […]

Jeff Ostrowski · September 5, 2024

“Entrance Chant” • For Sunday (8-Sep-2024)

Coming up fast is Sunday, 8 September 2024, which is the 23rd Sunday in Ordinary Time. Here’s the PDF file for the ENTRANCE ANTIPHON—in Gregorian notation on five lines—which we’ll be singing. You can also download this organ accompaniment which corresponds to that file. Plainchant scholars will be interested in the ancient version it mimics […]

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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

We cannot exaggerate our indebtedness to Dr. Julian’s “Dictionary of Hymnology,” a monumental work, without which we could not have reached the high standard of accuracy, as to both texts and authorship, which we set before us when entering upon our labours.

— Committee for “New English Hymnal” (1906)

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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