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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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Corpus Christi Watershed

President’s Corner

    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
    Simplified Accomp. • Schubert’s “Ave Maria.”
    Sometimes the organist must simultaneously serve as the CANTOR. (Those who work in the field of church music know exactly what I’m talking about.) One of our contributors composed this simplified keyboard accompaniment for Franz Schubert’s “Ave Maria,” a piece which is frequently requested for Catholic funerals and weddings. In terms of the discussion about whether that piece is too theatrical (‘operatic’) for use in Church, I will leave that discussion to others. All I know is, many church musicians out there will appreciate this simplified version.
    —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

“Custom preserves many things in liturgy after their first reason has ceased.”

— Father Adrian Fortescue (writing in 1916)

Recent Posts

  • “Translating the Bible” • Msgr. Ronald Knox (1953)
  • Season’s End Repertoire
  • PDF Download • “Funeral Procession”
  • Re: The “Correct” Way To Sing Gregorian Chant
  • PDF Download • Ascension “Entrance Chant”

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