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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

Biography • Christopher Mueller

Christopher Mueller · January 3, 2013

HRISTOPHER MUELLER is a church musician, conductor, and composer. His most well-known composition, the Missa pro editione tertia—a congregational setting of the 2011 ICEL translation of the Ordinary of the Mass—has been purchased by parishes in Australia, Canada, the UK, and throughout the USA. Most of his compositions are choral works written to be sung at Mass, including 40 Gregorian Introits (in Latin), a nearly-complete set of Responsorial Psalms for the 3-yr. cycle, 35 Offertory settings (in English), and numerous Masses, motets, sequences, and other works. He aims to write music befitting the liturgy out of gratitude to God, the Author of beauty. His two decades of work as a church musician—in the Ordinary Form of the Roman Rite—have focused on Renaissance polyphony and Gregorian chant (as well as his own compositions), first with a volunteer choir at the Church of Notre Dame in New York, NY, then with the professional SCHOLA POLYPHONICA at the Basilica of St. John the Evangelist in Stamford, CT; following that with the volunteer choir at the Church of St. Bernadette in Silver Spring, MD, and the professional schola he instituted at the National Shrine of St. John Paul II in Washington, D.C.  He is presently the organist and choirmaster at St. Louis Bertrand Church in Louisville, KY, where he serves with a wonderful cadre of Dominican Friars and directs a small professional schola.

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1,400 Motets • His choirs rarely repeat music during the course of the choral year, singing 100 or more different motets each season, and he has created editions of at least 200 motets himself. Similarly, his choirs seldom repeated music from one year to the next (with notable exceptions), so that the always-changing musical experience of Mass was a reflection of the ever-new experience of Christ in the Eucharist. The texts of the motets are drawn from sacred Scripture: sometimes a setting of the day’s Offertory or Communion proper, sometimes a passage from the day’s readings, and occasionally an Office hymn or other related text. He estimates that his choirs have sung at least 1400 different Renaissance motets over the years. In addition to his musical work, he also spent seven and a-half years coordinating the marriage preparation program for the Archdiocese of New York, over the course of which he and his wife taught pre-Cana classes to thousands of engaged couples. He has an undergraduate degree in piano performance (classical) and theory/composition (jazz) and has done graduate work in theology. And he loves the novels of Tom Clancy and Michael Crichton.

Please visit Mr. Mueller’s website for more information, to listen to excerpts of his compositions, or to purchase scores.

The following shows Chris Mueller directing a choir at WORLD YOUTH DAY in Krakow, Poland:

Here’s the direct URL link.

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

Filed Under: Articles, Biographies Last Updated: January 4, 2024

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About Christopher Mueller

Christopher Mueller is a conductor and composer who aims to write beautiful music out of gratitude to God, Author of all beauty.—(Read full biography).

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President’s Corner

    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
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski
    PDF Download • “Atténde Dómine”
    Although it isn’t nearly as ancient as other hymns in the plainsong repertoire, Atténde Dómine, et miserére, quía peccávimus tíbi (“Look down, O Lord, and have mercy, for we have sinned against Thee”) has become one of the most popular hymns for LENT—perhaps because it was included in the famous Liber Usualis of Solesmes. This musical score (PDF file) has an incredibly accurate version in English, as well as a nice version in Spanish, and also the original Latin. Although I don’t claim to have a great singing voice, this morning I recorded this rehearsal video.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of Febr. (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
    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

“We must remember that the important elements of a rite are not the things that will first be noticed by a casual and ignorant onlooker—the number of candles, colour of the vestments and places where the bell is rung—but just those things he would not notice: the Canon, fraction and so on, the prayers said in a low voice and the characteristic but less obvious rites done by the celebrant at the altar.”

— Fr. Fortescue explaining that Anglicanism does not preserve Sarum

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