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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

PDF Download

Jeff Ostrowski · March 2, 2024

“The Most Captivating Chorale” • (J. S. Bach)

“The mocking reed, and cruell ſpear, Their hate, his love diſplay.”

Jeff Ostrowski · March 1, 2024

“Stabat Mater” • Jeff Attempts to Sing All the Voices

A gorgeous, luscious, contemporary setting by Gustaaf Nees (d. 1965).

Jeff Ostrowski · February 28, 2024

PDF Download • “Two-Voice Polyphony For Lent”

Found in a special choral collection by Maria von Trapp.

Jeff Ostrowski · February 16, 2024

PDF Download • “For the Season of Lent” (SATB)

It even sounds great with four (4) singers: Soprano, Alto, Tenor, and Bass!

Corpus Christi Watershed · February 13, 2024

PDF Download • “Jesuit Martyrs of North America” (Stained Glass Window) — High Resolution

From “American Martyrs Catholic Church” in Manhattan Beach, California.

Jeff Ostrowski · February 13, 2024

“Ite, Missa Est” • What Does That Actually Mean?

Bishop Ambo’s assertion that Mass was attended—for centuries—by a single woman (and nobody else) is bizarre.

Jeff Ostrowski · February 10, 2024

Must We “Love” All Gregorian Chant?

Where “Parce Dómine” (the famous song for Lent) came from.

Jeff Ostrowski · January 31, 2024

PDF Download • “Pew Edition” — Monsignor Martin B. Hellriegel’s Hymnal (149 Pages)

Including never-before-released photographs of Monsignor Martin B. Hellriegel.

Jeff Ostrowski · January 30, 2024

“Polyphonic Sanctus” by J.S. Bach • Jeff Attempts All Voices (Even the Girls’ Vocals)

The occasion I speak of is when he stopped by our home to see us one final time.

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 23, 2024

Response to Mike’s Letter • “Six Concrete Examples”

“I would dismiss it as the second text writer being lazy and stealing someone else’s music…” —Michael H.

Follow the Discussion on Facebook

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.

Jeff Ostrowski · January 16, 2024

Which Hymns Are Appropriate After Christmas?

How many Catholics realize how closely the feast of the Epiphany is tied to the Holy Eucharist and Calvary?

Jeff Ostrowski · January 12, 2024

Organ Accompaniment Booklet (25 pages)

Those who celebrate VESPERS each week may wish to download my organ accompaniment booklet (25 pages) for the 2nd Sunday after Epiphany. This was originally released about a year ago (link), but minor improvements have been made.

Corpus Christi Watershed · January 10, 2024

Released • Jeff Ostrowski’s Seminar: “Secrets of the Conscientious Choirmaster” (9+ hours)

Mr. Ostrowski created this seminar based on lectures, masterclasses, and tutorials he’s presented at the Sacred Music Symposium over the last decade.

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Corpus Christi Watershed

President’s Corner

    Music List • (3rd Sund. Ordinary Time)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for this coming Sunday: the 3rd Sunday in Ordinary Time (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 monumental feasts website alongside the official texts in Latin.
    —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
    PDF Download • Introit (3rd Sn. Ord.)
    This coming Sunday, 25 January 2026, is the 3rd Sunday in Ordinary Time (Year A). The ENTRANCE CHANT (“Dóminus secus mare”) is somewhat rare because it comes from the New Testament. The authentic version in Latin—of astounding antiquity—was jettisoned in 1955 but restored in 1970. This rehearsal video has me attempting to sing the melody while simultaneously accompanying myself on the organ. I encourage you to print off the organ accompaniment (PDF) and play through it because it has extremely ‘happy’ harmonies.
    —Jeff Ostrowski

Quick Thoughts

    “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
    PDF Download • “In Paradisum” in English
    We always sing the IN PARADISUM in Latin, as printed on this PDF score. I have an appallingly bad memory (meaning I’d be a horrible witness in court). In any event, it’s been brought to my attention that 15 years ago I created this organ accompaniment for the famous and beautiful ‘IN PARADISUM’ Gregorian chant sung in English according to ‘MR3’ (Roman Missal, Third Edition). If anyone desires such a thing, feel free to download and print. Looking back, I wish I’d brought the TENOR and BASS voices into a unison (on B-Natural) for the word “welcome” on the second line.
    —Jeff Ostrowski

Random Quote

“The translator desires in conclusion to protest that if, (which he hopes and believes is not the case,) either the translation itself, or the footnotes, should contain anything which a faithful Catholic ought not to have written, he has written such passage inadvertently.”

— John Crichton-Stuart (27 June 1879)

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