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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

Christopher Mueller • Article Archive

Christopher Mueller is a church musician, conductor, and composer. He aims to write beautiful music out of gratitude to God, the Author of all beauty.—Read full biography (with photographs).

Christopher Mueller · October 23, 2025

Children’s Repertoire • Mueller’s Recommendations

Further thoughts about children’s choirs…

Christopher Mueller · October 28, 2024

*Gasp* — Other Sacred Music Websites!

In a show of “web-ecumenism” I’d like to mention five today.

Christopher Mueller · January 4, 2024

Mueller’s Artistic Credo • “Same But Different”

“Variety within a single Mass is important for engaging the listening ears (and singing voices) of the congregation.” —Chris Mueller

Christopher Mueller · June 17, 2023

Richard J. Clark’s “Salve Regina”

“Thanks, Richard, for another accessible and mellifluous motet!” —Chris Mueller

Christopher Mueller · October 6, 2020

(Installment #10) “Catholic Hymnals” • Chris Mueller

Father Rutler makes five crucial points.

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Christopher Mueller · March 30, 2020

Repeating Repertoire? • Christopher Mueller

I’m sure I’m not the only one to feel this way: certain celebrations don’t feel right without “that piece.”

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Christopher Mueller · July 25, 2017

What really happened at the Convocation of Catholic Leaders

Beautiful liturgical music happened—in a hotel ballroom, no less!

Christopher Mueller · April 12, 2016

World Youth Day with polyphony and chant!

Help us bring polyphony and chant to World Youth Day!

Christopher Mueller · February 29, 2016

The Domestic Church and the domestic schola

The family that sings together prays together.

Christopher Mueller · January 6, 2016

On Catholic Art

It’s time to renovate and reoccupy our own tradition!

Christopher Mueller · October 12, 2015

Rediscovering “Musicam Sacram”

I encountered anew this wonderfully clear and concise document about music in the liturgy.

Christopher Mueller · September 21, 2015

A Striking Approach To Performing Gregorian Chant

A commenter had posted, “Their metrical chant is a revelation!” That piqued my curiosity.

Christopher Mueller · September 7, 2015

Liturgy And Diversity

“His answer was surprising to me, and I thought it both prudential and catholic.” —Chris Mueller

Christopher Mueller · January 3, 2013

Biography • Christopher Mueller

Christopher is a church musician, conductor, and composer…

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Corpus Christi Watershed

President’s Corner

    PDF Download • “For Pentecost Sunday”
    Yesterday morning, I recorded myself singing the ENTRANCE CHANT for Pentecost Sunday while simultaneously accompanying myself on the pipe organ. Click here to see how that came out. At the end of the antiphon, there’s a triple Allelúja and I just love the chord at the end of the 2nd iteration. The organ accompaniment—along with the musical score for singers—can be downloaded free of charge at the flourishing feasts website. For the record, the antiphon on Pentecost Sunday doesn’t come from a psalm; it comes from the book of Wisdom.
    —Jeff Ostrowski
    PDF Download • “Organ Accompaniment”
    Over the past few years, I’ve been harmonizing all the vernacular plainsong Introit settings by the CHAUMONOT COMPOSERS GROUP. This coming Sunday—10 May 2026—is the 6th Sunday of Easter (Year A). The following declaration will probably smack of “blowing my own horn.” However, I’d rank this accompaniment as my best yet. In this rehearsal video, I attempt to sing it while simultaneously accompanying myself on the pipe organ. The musical score [for singers] as well as my organ accompaniment can be downloaded free of charge from the flourishing feasts website.
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 4 May 2026
    A few days ago, the CORPUS CHRISTI WATERSHED Facebook page posted this Gregorian Chant quiz regarding a rubric for the SEQUENCE for the feast of Corpus Christi: “Lauda Sion Salvatórem.” There is no audience more intelligent than ours—yet surprisingly nobody has been able to guess the rubric. Drop me an email with the right answer, and I’ll affirm your brilliance to everyone I encounter!
    —Jeff Ostrowski

Quick Thoughts

    “Thee” + “Thou” + “Thine”
    Few musicians realize that various English translations of Sacred Scripture were granted formal approval by the USCCB and the Vatican for liturgical use in the United States of America. But don’t take my word for it! Here are four documents proving this, which you can examine with your own eyes. Some believe the words “Thine” and “Thou” and “Thee” were forbidden after Vatican II—but that’s incorrect. For example, they’re found in the English translation of the ‘Our Father’ at Mass. Moreover, the Revised Standard Version (Catholic Edition) mentioned in those four documents employs “Thine” and “Thou” and “Thee.” It was published with a FOREWORD by Westminster’s Roman Catholic Archbishop (John Cardinal Heenan).
    —Jeff Ostrowski
    “Reminder” — Month of May (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 Version • “Canon in D” (Pachelbel)
    I published an article on 11 November 2023 called Wedding March For The Lazy Organist, which rather offhandedly made reference to a simplified version I created in 2007 for Pachelbel’s Canon. I often use it as a PROCESSIONAL for weddings and quinceañeras. Many organists say they “hate” Pachelbel’s Canon. But I love it. I think it’s bright and beautiful. I created that ‘simplified version’ for musicians coming to grips with playing the pipe organ. It can be downloaded as a free PDF if you visit Andrea Leal’s article dated 15 August 2022: Manuals Only: Organ Interludes Based on Plainsong. Specifically, it is page 84 in that collection—generously offered as a free PDF download. Johann Pachelbel (d. 1706) was a renowned German organist, violinist, teacher, and composer of over 500 works. A friend of Bach’s family, he taught Johann Christoph Bach (Sebastian Bach’s eldest brother) and lived in his house. Those who read Pachelbel’s biography will notice his connection to two German cities adopted as famous hymn tune names: EISENACH and ERFURT.
    —Jeff Ostrowski

Random Quote

What earlier generations held as sacred, remains sacred and great for us too, and it cannot be all of a sudden entirely forbidden or even considered harmful.

— ‘His Holiness, Pope Benedict XVI (7 July 2007)’

Recent Posts

  • Entrance Chant • Before or After Opening Hymn?
  • “Unfair Characterization” • (But Good Question)
  • “Thee” + “Thou” + “Thine”
  • PDF Download • “For Pentecost Sunday”
  • “Reminder” — Month of May (2026)

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