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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

Fr. David Friel · July 5, 2015

Vesting Prayers • Part 1 of 9

Over the coming weeks, I will present a series of reflections on the vesting prayers.

Veronica Brandt · June 20, 2015

Wrapped in the Liber Usualis

A scarf adorned with pages from the Liber Usualis. Why not?

Follow the Discussion on Facebook

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 2, 2015

An Essential & Unique Thing For Holy Thursday

…and a look at Holy Thursday from the 1965 Missal.

Fr. David Friel · February 8, 2015

Pastoral Difficulties with Recently Ordained Priests

A Response to a Post at “Pray Tell”

Jeff Ostrowski · August 12, 2014

Some Thoughts On “Englishing” Gregorian Chant

But why bring up this subject at all, when probably 95% of Catholic priests have no familiarity with Gregorian chant? • concerning the challenges of composing Gregorian chant in English+

Jeff Ostrowski · August 11, 2014

Mass Propers In English

Roosevelt was President while paralyzed. Churchill gave speeches but couldn’t pronounce “S” correctly. Surely, then, we can implement the Mass Propers with these 11 collections! • the Graduale Romanum has been set in English by many composers; here are some collections with audio samples+

Fr. David Friel · July 13, 2014

The “Children’s Liturgy of the Word”

Are We Past This Yet?

Jeff Ostrowski · June 12, 2014

Antiphons in the Gradual don’t match the Roman Missal, 3rd edition?

Why aren’t the Propers from the Roman Gradual identical to the Mass Propers printed in the Roman Missal? • “Recent research … has made it clear that the antiphons of the Order of Mass were never intended to be sung.” — Bishop Donald Trautman (2007)+

Jeff Ostrowski · February 17, 2014

PDF Download • 1974 “Graduale Romanum”

“How can we celebrate this new rite when we have not yet got a complete missal, and there are still so many uncertainties about what to do?” — Pope Paul VI (1969 General Audience)+

Fr. David Friel · January 26, 2014

Comparing Canons

Does Using Eucharistic Prayer II Really “Save Time”?

Corpus Christi Watershed · March 19, 2013

Free Download • “Liber Usualis” PDF Online (Solesmes, 1961)

Free PDF download of the complete “Liber Usualis with Introduction and Rubrics in English—with IMPRIMATUR dated 7 February 1961—edited by the Benedictine Monks of Solesmes+

Fr. David Friel · February 10, 2013

Lovely, If Unfamiliar

Duc in Altum

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Corpus Christi Watershed

President’s Corner

    “Reminder” — Month of April (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. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    Simplified Accompaniment (Easter Hymn)
    Number 36 in the Brébeuf Hymnal is “At the Lamb’s high feast we sing,” an English translation for Ad Cenam Agni Próvidi (which was called “Ad Régias Agni Dapes” starting 1631). As of this morning, you can download a simplified keyboard accompaniment for it. Simply click here and scroll to the bottom. Many organists are forced to serve simultaneously as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult—which explains why choirmasters appreciate these simplified keyboard accompaniments. Sadly, many readers will click that link but forget to scroll to the bottom where the simplified PDF file is located.
    —Jeff Ostrowski
    PDF Download • “Quasi Modo Sunday”
    The Introit for “Quasi Modo Sunday” (12 April 2026) is particularly beautiful. The musical score can be downloaded as a PDF file, and so can the organ accompaniment. The official language of the Catholic Church is Latin (whereas Greek is our mother tongue). Vatican II said Gregorian Chant must be given “first place” under normal circumstances. As a result, some parishes will rightly sing the authentic version. On the other hand, because so many USA dioceses disobey the mandate of Vatican II, some musicians sing plainsong in the vernacular. I have attempted to simultaneously accompany myself on the pipe organ while singing the English version. Although very few take advantage of it, the complete Proprium Missae is posted at the flourishing feasts website.
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski

Random Quote

“The traditions of the elders, your glory throughout long ages, must not be belittled. Indeed, your manner of celebrating the choral office [in Latin] has been one of the chief reasons why these families of yours have lasted so long, and happily increased.”

— Pope Saint Paul VI (15 August 1966)

Recent Posts

  • “Reminder” — Month of April (2026)
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  • Request From Australia
  • PDF Download • “Anima Christi”
  • PDF Download • “Rarer Than a Blue Moon” — Side-by-Side English Translation (Pius XII Psalter)

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