Views from the Choir Loft

Misereris omnium | Ash Wednesday Introit

Richard J. Clark · March 5, 2014

EW PARISHES ARE WILLING to sing Gregorian Introits for the Entrance procession. A growing practice is to sing the Introit followed by a hymn. If even this is too much, one may want to sing the Introit as a prelude. This practice allows the faithful to be exposed to the prayerful power of Gregorian Chant when singing the propers is not feasible. Furthermore, this is an excellent opportunity to engage the congregation more deeply and frequently with these transformative texts and chants.

For example, one can seize this opportunity on Ash Wednesday when the pews are filled with many who do not attend mass regularly. It is significant that the very first Introit of Lent sings of God’s infinite mercy: “Your mercy extends to all things, O Lord, and you despise none of the things you have made. You overlook our sins for the sake of repentance. You grant them your pardon, because you are the Lord our God.” —Wisdom 11:24-25, 27; Psalm 57 (56)

Free Download:
PDF • Misereris omnium | Introit | Ash Wednesday

N THIS RECORDING of Misereris omnium, the antiphon is followed by organ variations. The transformation and variety of colors in the organ indicate that through the Lenten season, we do not end up in the same place that we started. Beginning with the thick and rich clarinet stop in the tenor, the piece explores many colors, ending with very light 4’ flutes, in anticipation of Christ’s resurrection.

DESPITE BEING AN ORGANIST with a wonderful instrument at my disposal, I tend to not play instrumental preludes or postludes during Lent with the exception of Laetare Sunday. As such, I find the sung preludes to be effective and even popular as a way of preparing the congregation for prayer, which is the intention of a prelude after all. (That being said, I cannot help but to compose organ variations on this wonderful chant.)

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

About Richard J. Clark

Richard J. Clark is the Director of Music of the Archdiocese of Boston and the Cathedral of the Holy Cross.—(Read full biography).

Music List • (Palm Sunday, 2026)

Readers have expressed interest in seeing the ORDER OF MUSIC I created for Palm Sunday—a.k.a. “Dominica in palmis de Passione Domini”—which is 29 March 2026. Please feel free to download it as a PDF file if such a thing interests you. The OFFERTORY (Impropérium exspectávit cor meum) is quite moving. Even though the COMMUNION ANTIPHON is relatively simple, the Fauxbourdon makes it sound outstanding.

—Jeff Ostrowski

Easter • Would You Sing This Hymn?

He who examines Laudes Dei: a hymnal for Catholic congregations (St. Louis, 1894) will discover this pairing of a hymn for Easter. For the record, this isn’t the only Catholic hymn book to marry that text and melody; e.g. Saint Mark’s Hymnal for Use in the Roman Catholic Church in the United States (Peoria, 1910) does the same thing. Sometimes an unexpected pairing—chosen with sensitivity—can be superb, forcing singers to experience the text in a ‘fresh’ and wonderful way. On the other hand, we sometimes encounter something I’ve called “PERNICIOUS HYMN PAIRINGS.” If you find the subject in intriguing, feel free to peruse an article I published in May of 2023. As always, my email inbox is open if you have a bone to pick with my take.

—Jeff Ostrowski

Pipe Organ “Answers” in Plainsong?

In 2003, I copied a book by Félix Bélédin (d. 1895), who was titular organist—from 1841 to 1874—at the Cathedral of Saint John the Baptist in Lyon (France). In 2008, we scanned and uploaded the book to the Lalande Online Library. Nobody knows for sure when the book was published; some believe it first appeared in the 1840s. In any event, one who examines this excerpt, showing GLORIA IX might wonder why it says the organ answers in plainsong. However, the front of the book explains, telling the organist explicitly when to “respond in plainchant.” This is something called organ alternatim. Believe it or not, the pipe organ would take turns with the choir, playing certain texts instrumentally instead of having them sung. I’m not very well-versed in this—pardon the pun—but if memory serves, ORGAN ALTERNATIM was frowned upon by the time of Pope Saint Pius X. Nevertheless, French organists kept doing it, even after it was explicitly condemned as an abuse.

—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

PDF Download • “Ubi Caritas” (SATB)

I remember singing “Ubi Cáritas” by Maurice Duruflé at the conservatory. I was deeply moved by it. However, some feel Duruflé’s version isn’t suitable for small choirs since it’s written for 6 voices and the bass tessitura is quite low. That’s why I was absolutely thrilled to discover this “Ubi cáritas” (SATB) for smaller choirs by Énemond Moreau, who studied with OSCAR DEPUYDT (d. 1925), an orphan who became a towering figure of Catholic music. Depuydt’s students include: Flor Peeters (d. 1986); Monsignor Jules Van Nuffel (d. 1953); Arthur Meulemans (d. 1966); Monsignor Jules Vyverman (d. 1989); and Gustaaf Nees (d. 1965). Rehearsal videos for each individual voice await you at #19705. When I came across the astonishing English translation for “Ubi Cáritas” by Monsignor Ronald Knox—matching the Latin’s meter—I decided to add those lyrics as an option (for churches which have banned Latin). My wife and I made this recording to give you some idea how it sounds.

—Jeff Ostrowski

PDF Download • “Holy, Holy, Holy”

For vigil Masses on Saturday (a.k.a. “anticipated” Masses) we use this simpler setting of the “Holy, Holy, Holy” by Monsignor Jules Vyverman (d. 1989), a Belgian priest, organist, composer, and music educator who ultimately succeeded another ‘Jules’ (CANON JULES VAN NUFFEL) as director of the Lemmensinstituut in Belgium. Although I could be wrong, my understanding is that the LEMMENSINSTITUUT eventually merged with “Catholic University of Leuven” (originally founded in 1425). That’s the university Fulton J. Sheen attended.

—Jeff Ostrowski