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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

Featured

Jeff Ostrowski · August 6, 2024

PDF Download • “Entrance Chant in English” (19th Sunday in Ordinary Time)

Including twelve (12) different versions!

Corpus Christi Watershed · June 3, 2024

We’ve Heard From Sister Anne Flanagan, FSP!

Some believe this to be the Church’s most ancient 𝒗𝒆𝒓𝒏𝒂𝒄𝒖𝒍𝒂𝒓 melody.

Jeff Ostrowski · June 1, 2024

“Lauda Sion” (Sequence) • Too Lengthy, Or Not?

At the end of the American Civil War, nearly 33% of all currency in circulation was counterfeit.

Jeff Ostrowski · May 29, 2024

What Corrinne Did For Us!

A few days ago, our organization scanned and released…

Jeff Ostrowski · May 15, 2024

Documentation • “In the Olden Days, Was Vernacular Sung During Liturgical Services?”

Including a splendid harmonization of “Holy God, We Praise Thy Name.”

Follow the Discussion on Facebook

Jeff Ostrowski · April 14, 2024

PDF Download • “Freiburg Cathedral Hymnal” (Organ Accompaniment) — 308 Pages!

The most comprehensive German hymnal ever printed? Well, this masterpiece by Monsignor Stemmer is certainly in the top five!

Jeff Ostrowski · April 4, 2024

Jeff Ostrowski To Leave Los Angeles!

I believe Catholics have a right to attend Mass without being aurally assaulted.

Jeff Ostrowski · March 27, 2024

“Saint Felix Creed” • Musical Setting for the Nicene Creed (Roman Missal, 3rd Edition)

Dedicated to my brother, Father Mark Ostrowski.

Jeff Ostrowski · March 26, 2024

Good Friday’s Dazzling (and Ancient) Hymn

Visit a random church on Sunday morning and ask parishioners basic questions…

Jeff Ostrowski · March 19, 2024

Church Music • “The Female Voice”

Msgr. Leo Manzetti foolishly wrote: “Church musicians, when experts in vocal art, agree that women’s voices are effeminate, sensuous, and operatic, hence un-churchly.”

Guest Author · February 8, 2024

Father Robbie Low: “The State of Catholic Music”

“Music has an immense part to play in this perception of the divine reality and the heavenward leanings of the soul.” —Fr Robbie Low

Jeff Ostrowski · February 6, 2024

“Mass in the Vernacular?” • Seven (7) Considerations

Should Mass be in Latin or English? Or should it be a mixture?

Jeff Ostrowski · January 29, 2024

PDF Score • “Mass Setting I Wrote For Corrinne”

I demonstrate how the “Kyrie Eleison” can be adapted for use in the Extraordinary Form.

Jeff Ostrowski · January 26, 2024

Eucharistic Hymn With Gorgeous Tenor Line

Responding to an inquiry from Wendy Q.

Jeff Ostrowski · January 17, 2024

PDF Download • “Credo III + Polyphonic Extension”

When I just couldn’t take it anymore, I called up a friend on the telephone and paid him $150 to teach me.

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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—1 March 2026—the 2nd Sunday of Lent (Year A). If such a thing interests you, feel free to download it as a PDF file. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the flourishing feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    Particularly Beautiful
    The 2nd Sunday of Lent has magnificent propers. Its INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with 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
    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 liturgical reform bears absolutely no relation to what is called “desacralization” and in no way intends to lend support to the phenomenon of “secularizing the world.” Accordingly the rites must retain their dignity, spirit of reverence, and sacred character.

— Sacred Congregation for Divine Worship (5 September 1970)

Recent Posts

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

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