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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

A Classic Example of Modal Modulation

Dr. Charles Weaver · November 12, 2023

A FEW MONTHS AGO, I wrote a post about a traditional and brief way of formulating the ethos or character associated with each of the eight modes. If you apply this way of thinking to your chanting, it can often bear a great deal of fruit for contemplation. It provides another dimension for us to think about as we approach a chant: liturgical context and meaning, melody, text setting, mode. In particular, I would like to suggest that you might get something out of adopting a dynamic rather than a static way of thinking about the modes.

Here is what I mean by a static way. What we teach our students is that we classify a melody into one of the modes by looking at its final and its range. The final is the last note of the melody, and it works like this: D is for modes 1 and 2; E is for modes 3 and 4; F is for modes 5 and 6; G is for modes 7 and 8. If a chant ends on another note, we consider it as being in a transposed version of one of the other modes. Typically C endings are mode 5, A endings are mode 2, and B endings are mode 4. The range refers to whether the final note is near the bottom of the range of pitches in the melody or somewhere in the middle. Near the bottom means an odd-numbered mode, while in the middle means an even-numbered mode. This is not really an exact science, but after spending a while with the melodies you get pretty confortable categorizing them.

In a dynamic way of thinking about the modes, we add on to what I wrote above by thinking of the modes as also having certain typical melodic patterns and certain notes that seem to anchor the mode. Often these are the same as the tenor or reciting tone of the psalm. Sometimes these are other notes, like the pitch F in the Easter introit. Sometimes a melody can visit other modes by adopting the melodic mannerisms of that mode. If you combine that with the modal ethos, you can sometimes get some real analytical insight. I know that sounds like dry theory, but I think it can be rewarding for any choir director to think this way!

A very clear example of this happened today at the communion in the ordinary form. The communion sets an excerpt from today’s gospel about the wise and foolish virgins. As usual, the Gregorian author did a great job of paraphrasing the gospel text to make a coherent and beautiful antiphon focused on one important aspect from the gospel lesson. That could be the basis for a whole other post. Anyway, the melody also moves between modes in an interesting way. First off, we have this phrase:

The antiphon is in mode 5, but if we single out this phrase, we are most certainly in mode 6, which is the mode of devotion. How fitting for the prudent virgins, who keep their vessels full of oil against the bridegroom’s coming—a praiseworthy act of devotion! When the cry comes announcing the coming of the bridegroom, it bursts forth into the fifth mode, the mode of joy:

This sudden rise up to the high E makes a really startling effect in context. As a depiction of the Lord’s coming, it it reminiscent of the image of the lightning coming from the east to the west.

Finally, we get a rather unusual (for a communion chant) melodic repetition, but with a new continuation:

On the command “go out,” the melody also goes outside of its previous limits, finding a new peak on the high F. Of course we don’t really think about chants in tonal terms, but the Schenkerian in me can’t help hearing this F as a long-term resolution to the high E in the previous phrase. If you’d rather think about this in a more historical way, we can think of the pointed character of the La on which we would sing the E in the solmization system, which finds some resolution in finally attaining the softness of the fa (F) above. Toward the cadence, the melody on the ending of “Christo” is also reminiscent of one of the formulaic phrases from fifth-mode graduals.

These are some tentative, sketchy beginnings of an analysis that occurred to me today while singing. Do you find the move from the mode of devotion to the mode of joy suggestive? For me, this kind of thinking helps me to shape the melody in my own singing.

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

Filed Under: Articles Last Updated: November 13, 2023

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About Dr. Charles Weaver

Dr. Charles Weaver is on the faculty of the Juilliard School, and serves as director of music for St. Mary’s Church. He lives in Connecticut with his wife and four children.—(Read full biography).

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President’s Corner

    Buckfast Abbey Weighs In
    Dom John Stéphan was a Benedictine monk of Buckfast Abbey in South Devon, England. On 4 February 1933, he published this interesting letter in THE TABLET. Have you seen the exterior of Buckfast Abbey? It’s beyond gorgeous. I doubt there’s a more arresting Abbey in the entire world. Dom Stéphan’s letter is concerning this momentous collection, which our organization obtained, scanned, and uploaded.
    —Jeff Ostrowski
    Responsorial Psalm Fauxbourdon?
    When it comes to singing Responsorial Psalms in Fauxbourdon, what does this sound like in practice? Can such a thing be done successfully with volunteer choirs in real Catholic parishes? Listen to this audio excerpt from Good Friday and see what you think. Our parish volunteer choir did so well this year—and the ceremonies were ‘standing room only’. For the record, that musical score can be downloaded (completely free of charge) from the flourishing feasts website.
    —Jeff Ostrowski
    Music List • (Easter Sunday, 2026)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for Easter Sunday—a.k.a. “Ad Missam in die Paschae”—which is 5 April 2026. Please feel free to download it as a PDF file if such a thing interests you. The Fauxbourdon for Communion is particularly moving.
    —Jeff Ostrowski

Quick Thoughts

    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
    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

Random Quote

“The renewal also showed clearly that the formulas of the Roman Missal had to be revised and enriched. This was begun by Pope Pius XII in the restoration of the Easter Vigil and the Holy Week services, which formed the first stage in accommodating the Roman Missal to contemporary mentality.”

— Pope Paul VI (1974 Sacramentary)

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  • PDF • “Liturgical Law” (467 Pages)
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  • Responsorial Psalm Fauxbourdon?

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