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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

Improvising – and Praying – on the Propers

Richard J. Clark · January 10, 2014

N RECENT YEARS, I HAVE ADOPTED THE HABIT of improvising on the propers when appropriate and applicable. Most often, this may be at a mass without choir, or perhaps one of the “off-peak” masses. This also comes in the form of the occasional prelude improvisation, usually on the Introit. In doing so, one can never be reminded enough of these words from the Second Vatican Council:

“In the Latin Church the pipe organ is to be held in high esteem, for it is the traditional instrument which adds a wonderful splendor to the Church’s ceremonies and powerfully lifts up man’s mind to God and to higher things.” (Sacrosanctum Concilium, 120),

Coupled with the above phrase must be the following:

“Therefore sacred music is to be considered the more holy in proportion as it is more closely connected with the liturgical action…” (Sacrosanctum Concillium § 112)

When one can print the text in a worship aid, the prayerful connection is easily made. However, when this is not the case, what purpose does it serve, and why persist in doing it? The answer is more closely related to the interior prayer life of the organist. Not only is a melody the subject of improvisation, but also the text must be in the heart of the improviser throughout!

To make a habit of carrying these texts in one’s heart on a regular basis can only be helpful to the prayer life of the organist. But what does this accomplish for anyone else? What does this accomplish liturgically? Well, a few things. First of all, a must read is Part Four of Dr. William Mahrt’s “The Musical Shape of the Liturgy: The Function of the Organ.” Dr. Marhrt points out the ancient common practice:

“The prescription found in medieval liturgical books that a melody which is to be carried by the organ is cantabitur in organis (it shall be sung upon the organ), or even dicetur in organis (it shall be said on the organ), and it acknowledges this function of implicitly bearing the text.”

However, this applies to well-known sacred melodies that a listener would easily recognize. The most common example are masses sung in alternatum with the organ. It is clearly understood what the text is whether sung or played.

But what about melodies that are unfamiliar, especially in a present-day context? Consider too, that the heart of improvisation is elaboration. Then what? Does anyone have any idea what we are doing? Is it important? Very few Offertory melodies are being whistled on the way out the door.

In such cases, one would not argue that the organ is speaking the text in the sense of ”dicetur in organis” (it shall be said on the organ). Rather, the music must serve to the heart of prayer in of itself, as well as serve the ongoing liturgical action, which improvisation tends to do fairly well.

CLOSE FRIEND, A PRIEST once told me years ago something I’ve never forgotten. “The people don’t need to know what it is to understand it.” In other words, they will understand the prayer interiorly if not in words. Since hearing that, I have always thought it important to play and pray music related to a relevant text. This is not an excuse for laziness and to not provide texts in worship aids. But in times when texts are not readily available, or even if they are, the liturgical understanding is not present, one relies on faith that what the musician prays edifies and transports those with open ears open to prayer.

Another friend recently wrote to me, “I don’t think that the average Catholic has a conscious appreciation of our need for sacred mystery.” However, I believe that there might be a subconscious hunger for the sacred mysteries. While this may sound silly to some of us, it is worth the reminder to never be afraid of expressing mystery. Improvisation does this quite well as it unleashes the spirit. Coupled with Gregorian Chant, improvisation gives further voice to the sacred. Do not be afraid of the mystery!

ERE I OFFER TWO somewhat random examples from the twenty-third Sunday in Ordinary Time. While crude videos, they were recorded during mass, hopefully retaining the continuity of the liturgical action. In somewhat of a colorful French, yet modal language, I hope my limited improvisational skills assist in prayer.

Hopefully, if we make a habit of keeping the prayers of the propers in our hearts, we will ourselves become converted and transformed in the ways we most need. This in turn may assist in all the other work that we must do.

There is power in improvisation and in prayer.

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

Filed Under: Articles Tagged With: Improvisation, Pipe Organ, Propers Last Updated: January 1, 2020

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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).

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Corpus Christi Watershed

President’s Corner

    PDF Download • Communion for Sunday
    The COMMUNION ANTIPHON with fauxbourdon psalm verses for this coming Sunday (3 May 2026) is elegant and poignant. It’s such a shame it only comes every three years. This piece—along with all the musical scores for this coming Sunday, which is the 5th Sunday of Easter (Year A)—can be downloaded free of charge from the flourishing feasts website. By the way, how is it already 2026?
    —Jeff Ostrowski
    Season’s End Repertoire
    Looking at the REPERTOIRE SHEET until the end of the choral season, I see that I’ve fallen behind schedule. (The last three months have been extraordinarily busy.) As you know, I have been providing organ harmonies for all the ENTRANCE CHANTS—as well as rehearsal videos—and you can see I’m behind where I planned to be. Now I must make up lost ground. However, the choir picks up the ENTRANCE CHANT with ease, so I’m sure it will all work out. My ‘unofficial’ harmonizations are being posted each week at the flourishing feasts website.
    —Jeff Ostrowski
    PDF Download • “Funeral Procession”
    From a mediæval Book of Hours, I was sent this glorious depiction of a Roman Catholic funeral procession by Simon Bening (d. 1561). The image resolution is extremely high. I’m not sure I know of a more beautiful illustration of a mediæval church. And I love how the servers are wearing red and pink cassocks!
    —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

“I, (Name), do declare that I do believe that there is not any Transubstantiation in the Sacrament of the Lord’s Supper, or in the elements of the bread and wine, at or after the consecration thereof by any person whatsoever.”

— ‘From England’s Anti-Catholic Oath (1673)’

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