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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 · May 12, 2015

Stephen Colbert: “I’m Not A Fan Of Guitar Masses”

Perhaps it requires a comedian to realize that not all musical styles are appropriate for Mass.

Jeff Ostrowski · May 11, 2015

VIDEO • Watch Jeff Ostrowski Load Choir Binders

Wow—did you ever see anyone load them this fast?

Jeff Ostrowski · May 11, 2015

Stunning Hymn With 3-Voice Polypony You Will Want To Sing For Pentecost

A story about Victoria—perhaps a myth—says Palestrina was jealous of his student’s first drafts.

Jeff Ostrowski · May 10, 2015

Resources • 5th Sunday after Easter (1962 Missal)

We are getting close to Pentecost, when the FSSP Superior General will visit our parish.

Jeff Ostrowski · May 5, 2015

The Actual Vestments Of Pope Saint Pius V

Let’s be honest…those shoes look nice and comfy!

Jeff Ostrowski · May 4, 2015

Video • “Vidi Aquam” Organ Accompaniment By Jeff Ostrowski

The “Method of Gregorian Accompaniment” by Flor Peeters is excellent.

Jeff Ostrowski · May 1, 2015

In This Regard, The EF Cannot Compare To The OF

If you’re searching for “Cum vénerit Paráclitus,” you might want to check the *D* section…

Jeff Ostrowski · May 1, 2015

Resources • 4th Sunday after Easter (1962 Missal)

The Communion can be written “Dum venerit” or “Cum venerit”—both are correct.

Jeff Ostrowski · May 1, 2015

Twelve (12) PDF Guides To Pronouncing Latin

Fr. Carlo Rossini’s is probably the best, but 11 more are also provided.

Jeff Ostrowski · April 30, 2015

Liturgy Gone Wild

What do progressive liturgists truly want?

Jeff Ostrowski · April 29, 2015

Rare Video • Richard Nixon Meets With Pope Paul VI

Footage taken by John Ehrlichman a 1970s “home video reel.”

Jeff Ostrowski · April 29, 2015

Liturgical Silence—But Not What You Think!

When I was young, I would have tried to argue.

Jeff Ostrowski · April 28, 2015

PDF Download • “The Parish Hymnal” (1957)

“The origins of some are not known due to the long and nearly untraceable popular usage they have enjoyed.” —Gregorian Institute

Jeff Ostrowski · April 27, 2015

Brave Schola Director Posts “Live” Recording • Part 2

We’re having a lot of fun…is that bad?

Jeff Ostrowski · April 27, 2015

PDF Download • “Hymns Of The Roman Liturgy” (Rev. Joseph Connelly, 1955)

“These samples from Connelly make less sense in English than the Latin originals would to a North Korean.” —Msgr. Francis P. Schmitt

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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 Humanists abominated the rhythmical poetry of the Middle Ages from an exaggerated enthusiasm for ancient classical forms and meters. Hymnody then received its death blow as, on the revision of the Breviary under Pope Urban VIII, the medieval rhythmical hymns were forced into more classical forms by means of so-called corrections.”

— Father Clemens Blume, S.J.

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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