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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

“Ad Te Levavi” • Variant

Jeff Ostrowski · January 9, 2026

EING INVOLVED in the world of Gregorian Chant scholarship can be a bit frustrating. I say this because basic ideas are repeated over and over, yet certain parties (who should know better) pretend not to understand. For instance, it’s important to realize why the EDITIO VATICANA was created. It is a CENTO. In other words, it does not intend to reproduce a certain manuscript written in a certain century by a certain monastery. Again, it’s a CENTO, which took into consideration the entire tradition of authentic plainsong—not just a handful of manuscripts from a particular monastery. That’s why it’s nonsensical to ‘interpret’ the EDITIO VATICANA by placing adiastematic neumes from a particular manuscript above its notes, in the same way it would be nonsensical and reprehensible to ‘interpret’ a piece by Brahms using pedal markings from a composition by Chopin.

Variants • Once we understand why the EDITIO VATICANA was created, we likewise understand there will always be variants. The following is a gorgeous 14th-century variant whose opening hints at tone painting—lifting one’s soul to God—in a way slightly obscured by the EDITIO VATICANA:

*  PDF Download • “Ad Te Levavi” (14th century)

First Letter of the Alphabet • The ‘original’ liturgical year began with Christmas, which is only natural: a birth. But as the centuries rolled along, it was felt that a time of preparation was needed leading up to Christmas. Apparently, that’s how we got ADVENT—although that season still incorporates many of the “end of the book” themes. Nowadays we consider ADVENT the beginning of the liturgical year.

Is it really just a coincidence that—now that ADVENT is considered the beginning of the liturgical year—the very first Introit comes from an alphabetical psalm (Psalm 24: “Ad te, Dómine, levávi ánimam meam”) and starts with the letter A? It’s difficult to believe this was a coincidence.

Regarding Source • Something else must be repeated again and again (because it’s quite important): viz. just because a manuscript currently resides in a particular library, that doesn’t necessarily tell us anything about when or where that manuscript was created. Nor does it necessarily tell us something about who’s responsible for its creation. In other words, the fact that a manuscript is found inside a particularly library in the year 2026 doesn’t necessarily reveal its provenance. Over the last 1,500 years, entire civilizations have risen and fallen. Manuscripts get destroyed, manuscripts get damaged, and manuscripts are often moved from place to place over the centuries.

Whose Ox Is Being Gored • This reality is something very basic; even a child in high school will have no difficulty grasping it. Yet some who self-identify as Gregorian Chant “scholars” appear ignorant of it. Over the past 15 years, I’ve come to believe some feign ignorance in this arena because it depends “whose ox is gored.” In other words, if acknowledging this basic reality causes someone’s ‘pet’ theory to disintegrate, such a one will be quite unwilling to do so.

When You Wish Upon a Star • The origins of many Gregorian Chant manuscripts remain shrouded in mystery. Homo modernus believes that the passage of time reveals all truth—but that’s a lie. As a matter of fact, the passage of time can sometimes leave us with less (!) knowledge vis-à-vis the provenance of ancient MSS. That’s because evidence may emerge which calls into question certain assumptions which had hitherto been accepted as ‘established’ or ‘likely’ or ‘within the realm of possibility’. In spite of the precept of homo modernus, sensible people realize that decades from now we may know nothing more vis-à-vis the provenance of certain ancient MSS.

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

Filed Under: Articles, PDF Download Tagged With: Gregorian Rhythm Wars, Psalm 24 Alphabetical Last Updated: January 9, 2026

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About Jeff Ostrowski

Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He resides with his wife and children in Michigan. —(Read full biography).

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Corpus Christi Watershed

President’s Corner

    PDF Download • “Sprinkling Rite”
    Liturgical reformers who gained power after Vatican II frequently caused great suffering to musicians. With the stroke of a pen, they sometimes make changes that would require thousands—or even millions—of man hours (work undertaken by composers and editors). The Sprinkling Rite during Eastertide is but one tiny example. The version given in that PDF document was the original melody for Roman Missal, Third Edition. Some still prefer that version. However, at the last moment, an “unknown hand” tinkered with a few notes in the antiphon. Those who examine the current edition can verify this with their own eyes.
    —Jeff Ostrowski
    ‘Sarum’ Good Friday?
    Plainsong of the Roman Rite has many variants—i.e. slight ‘variations’ or ‘alterations’ made to the ancient melodies. Variants often thrive in particular religious orders. Likewise, before Henry VIII broke away from the Catholic Church, Gregorian Chant variants were frequently associated with individual cathedrals in England: Hereford, Lincoln, Salisbury, and so forth. In the early 20th century, the (Anglican) organist at Westminster Abbey married “Let All Mortal Flesh Keep Silence” to this beautiful variant melody from England. Those who sing Gregorian Chant on Good Friday will recognize the melody. What do you think of this pairing?
    —Jeff Ostrowski
    PDF Download • “Eb Organ Postlude”
    Gustav Adolf Merkel (d. 1885) was a German organist, teacher, and composer. Although a Lutheran himself, he held the appointment at the (Roman Catholic) Cathedral of Dresden from 1864 until his death. You can download his Organ Postlude in E-Flat, which I like very much. He has an interesting way of marking the pedal notes. What do you think?
    —Jeff Ostrowski

Quick Thoughts

    “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

Random Quote

“If we continue to tolerate sad examples of liturgical abnormalities, experimentation, abuse, and simply poor-quality liturgies, why should we single out those connected to the ancient rites of the Church for special vigilance? It just doesn’t seem right.”

— An Example of a response (sent to Pope Francis) Re: the TLM

Recent Posts

  • PDF Download • “Sprinkling Rite”
  • ‘Sarum’ Good Friday?
  • Gregorian Chant • The “Correct” Way of Singing ?
  • PDF Download • “Eb Organ Postlude”
  • Fulton J. Sheen • “24-Hour Catechism”

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