• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

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.”

  • Donate
  • Our Team
    • Our Editorial Policy
    • Who We Are
    • How To Contact Us
    • Sainte Marie Bulletin Articles
    • Jeff’s Mom Joins Fundraiser
  • Pew Resources
    • Brébeuf Catholic Hymnal
    • Jogues Illuminated Missal
    • Repository • “Spanish Music”
    • KYRIALE • Saint Antoine Daniel
    • Campion Missal, 3rd Edition
  • MUSICAL WEBSITES
    • René Goupil Gregorian Chant
    • Noël Chabanel Psalms
    • Nova Organi Harmonia (2,279 pages)
    • Roman Missal, 3rd Edition
    • Catechism of Gregorian Rhythm
    • Father Enemond Massé Manuscripts
    • Lalemant Polyphonic
    • Feasts Website
  • Miscellaneous
    • Site Map
    • Secrets of the Conscientious Choirmaster
    • “Wedding March” for lazy organists
    • Emporium Kevin Allen
    • Saint Jean de Lalande Library
    • Sacred Music Symposium 2023
    • The Eight Gregorian Modes
    • Gradual by Pothier’s Protégé
    • Seven (7) Considerations
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 · April 1, 2023

Three (3) Cheerful Items • “Sacred Music Revolution”

Dallas, Singapore, Los Angeles…there’s so much good in the world!

Jeff Ostrowski · March 29, 2023

“Seventy-Three (73) Changes” • Which Pope Pius XII Made to Holy Week

If we feel compelled to condemn these changes, let’s at least spend time learning what they are!

Jeff Ostrowski · March 28, 2023

Three (3) Tricks Every Choir Director Should Learn

Conscientious choirmasters know it’s crucial to get “as much bang for your buck” as possible.

Jeff Ostrowski · March 27, 2023

Question: “How Do You Read The Official Edition?”

A reader asks: “No Dotted Neumes?”

Jeff Ostrowski · March 27, 2023

PDF Download • “Organ Accompaniment Booklet” (Passion Sunday Vespers) — 24 pages

Fulton J. Sheen considered Monsignor Knox’s English translation of the Bible to be the greatest ever created.

Jeff Ostrowski · March 23, 2023

Four (4) Shimmery Hymns for Lent & Passiontide

“In nothing are English Catholics so poor as in vernacular hymns. The real badness of most of our popular hymns (endeared, unfortunately, to the people by association) surpasses anything that could otherwise be imagined.” —Father Fortescue

Jeff Ostrowski · March 21, 2023

“Go!” • The Word That Changed My Life Forever

As Americans, we’re “bred from birth” to think of ourselves as little gods who already know everything and require no correction.

Jeff Ostrowski · March 21, 2023

Vespers Booklet (4th Sunday of Lent)

The organ accompaniment booklet (24 pages) which I created for the 4th Sunday of Lent (“Lætare Sunday”) may now be downloaded, for those who desire such a thing.

Jeff Ostrowski · March 19, 2023

PDF Download • Vespers Organ Accomp. Booklet (4th Sunday of Lent) — 24 pages

This is probably too late … but there’s always next year!

Jeff Ostrowski · March 18, 2023

Sneaky “Salicus” Statements by Solesmes

Let there be no mistake about it: Dom Mocquereau (illicitly) added the “salicus” in hundreds of places where the official edition has none.

Jeff Ostrowski · March 17, 2023

“The German Palestrina”

Although it’s a hideous accompaniment, I’ve added the harmonization by Monsignor Franz Nekes to this collection of nineteen organ accompaniments for the Easter Sunday Sequence: Víctimæ Pascháli Laudes. Once upon a time, Monsignor Nekes was a very popular composer, known as “The German Palestrina.”

Jeff Ostrowski · March 16, 2023

“Lætáre Jerúsalem” • Introit (4th Sunday of Lent)

Sung according to the official rhythm of the Catholic Church.

Jeff Ostrowski · March 15, 2023

“Solesmes Ictus” • Can It Be Justified? (Examples)

“If you begin by telling a man that in a word like 𝐷𝑒𝑢𝑠 the first syllable corresponds to the weak beat, the second to the strong beat of a modern bar, the only thing accomplished will be to bewilder him thoroughly.” —Father Bewerunge

Jeff Ostrowski · March 12, 2023

Vespers Booklet, 3rd Sunday of Lent

The organ accompaniment I created for the 3rd Sunday of Lent (“Extraordinary Form”) may now be downloaded, if anyone is interested in this.

Jeff Ostrowski · March 9, 2023

PDF Download • Belgian “Ordinary of the Mass” (Organ Accompaniment) — 191 pages

This volume has been professionally scanned—and you’ll love the results!

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 50
  • Page 51
  • Page 52
  • Page 53
  • Page 54
  • Interim pages omitted …
  • Page 187
  • Go to Next Page »

Primary Sidebar

Corpus Christi Watershed

President’s Corner

    PDF • “3-Voice Motet” (Father De Laet)
    I believe 99% of our readers will recognize this hymn tune. Perhaps Father Edgard De Laet should have called it a ‘hymn’ instead of a ‘motet for three voices’—but he’s technically correct, since MOTET is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.” The even verses are for three voices, as you will see if you download the PDF score at #20245. The odd verses may be song a cappella SATB or unison with organ.
    —Jeff Ostrowski
    PDF Download • “Hymn for 2 Voices”
    Readers who click on this video will see that it starts with verses of the “Pange Lingua” hymn by Saint Thomas Aquinas (d. 1274) arranged for two voices. However, there’s a polyphonic refrain (“Tantum Ergo”) for three voices, taken from Kevin Allen’s Motecta Trium Vocum. If your choir is very small, this piece is for you! You can download the PDF score free of charge—and you can also utilize the rehearsal videos for each individual voice—by navigating yourself to #20323.
    —Jeff Ostrowski
    “Holy Name Hymn” (2-Voice Arrangement)
    When we post a direct URL link, we frequently get thousands of downloads. But when scrolling is required, very few take the time. I mention this because those who click on this URL link and scroll to the bottom can download—completely free of charge—a clever 2-voice arrangement for a famous hymn to the Most Holy Name of Jesus. In a pinch, it can be nicely sung by one male and one female! It will be of interest to those who seek arrangements for two voices.
    —Jeff Ostrowski

Quick Thoughts

    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
    “Reminder” — Month of January (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. Signing up couldn’t be easier: simply scroll to the bottom of any blog article and enter your email address.
    —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 Pope is not an absolute monarch whose thoughts and desires are law. On the contrary: the Pope’s ministry is a guarantee of obedience to Christ and to his Word. He must not proclaim his own ideas, but rather constantly bind himself and the Church to obedience to God’s Word, in the face of every attempt to adapt it or water it down, and every form of opportunism.”

— ‘His Holiness, Pope Benedict XVI (11 May 2005)’

Recent Posts

  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”
  • (January 2026) • “Children Singing Plainsong”
  • “Inquiry” • For Music Directors of Cathedrals and Larger Parish Churches

Subscribe

Subscribe

* indicates required

Copyright © 2026 Corpus Christi Watershed · Isaac Jogues on Genesis Framework · WordPress · Log in

Corpus Christi Watershed is a 501(c)3 public charity dedicated to exploring and embodying as our calling the relationship of religion, culture, and the arts. This non-profit organization employs the creative media in service of theology, the Church, and Christian culture for the enrichment and enjoyment of the public.