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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

“Introit” (3rd Sunday of Advent) • Sung According the Church’s Official Rhythm

Jeff Ostrowski · December 11, 2022

HE PREFECT of the Congregation for Sacred Rites under Pope Saint Pius X wrote (on 18 February 1910): “A view concerning the Vatican edition of the liturgical chant is being spread which is absolutely false in itself and very prejudicial to the uniform restoration of the said chant in the whole Church. It is insinuated that the Holy Father in publishing the aforesaid edition did not intend to embody in it a special form of rhythm, but to leave to the individual music directors the right to apply to the series of notes, taken materially, any rhythm they deem most appropriate. […] It has always been and still is absolutely foreign to the mind of the Holy Father (and of the Congregation of Sacred Rites) to leave to the discretion of the individuals such an important and essential element as the rhythm of the melodies of the Church.”

In the following video, I attempt to sing the INTROIT FOR THE THIRD SUNDAY OF ADVENT in accordance with the Church’s official rhythm:

Freedom for Choirmasters • The Editio Vaticana allows some freedom when it comes to Trochees “slowing down” before a bar line. Each of the following four (4) methods is valid:

If one listens carefully to the monks of Solesmes, they often—although they would deny this—do the reverse of what Dom Mocquereau’s marking say to do. Dom Gajard’s recording of CREDO I is a typical example. Or listen to the Solesmes monks recording of Diviserunt Sibi.

A “Must Read” • The legendary Father Valentine Young, OFM, preached a marvelous homily wherein he analyzes this INTROIT word-by-word.

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

Filed Under: Articles Tagged With: Abbat Joseph Pothier, Diviserunt Sibi Antiphon, Dom Joseph Gajard OSB, French Vs German Trochee, Mocquereau Rhythmic Signs, Sebastian Cardinal Martinelli Last Updated: December 20, 2022

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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

    “Reminder” — Month of April (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    Simplified Accompaniment (Easter Hymn)
    Number 36 in the Brébeuf Hymnal is “At the Lamb’s high feast we sing,” an English translation for Ad Cenam Agni Próvidi (which was called “Ad Régias Agni Dapes” starting 1631). As of this morning, you can download a simplified keyboard accompaniment for it. Simply click here and scroll to the bottom. Many organists are forced to serve simultaneously as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult—which explains why choirmasters appreciate these simplified keyboard accompaniments. Sadly, many readers will click that link but forget to scroll to the bottom where the simplified PDF file is located.
    —Jeff Ostrowski
    PDF Download • “Quasi Modo Sunday”
    The Introit for “Quasi Modo Sunday” (12 April 2026) is particularly beautiful. The musical score can be downloaded as a PDF file, and so can the organ accompaniment. The official language of the Catholic Church is Latin (whereas Greek is our mother tongue). Vatican II said Gregorian Chant must be given “first place” under normal circumstances. As a result, some parishes will rightly sing the authentic version. On the other hand, because so many USA dioceses disobey the mandate of Vatican II, some musicians sing plainsong in the vernacular. I have attempted to simultaneously accompany myself on the pipe organ while singing the English version. Although very few take advantage of it, the complete Proprium Missae is posted at the flourishing feasts website.
    —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

«In the same quarter where he was crucified there was a garden.» (John 19:41) — The word “garden” hinted at Eden and the fall of man, as it also suggested through its flowers in the springtime the Resurrection from the dead.

— Fulton J. Sheen

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  • PDF Download • “Anima Christi”
  • PDF Download • “Rarer Than a Blue Moon” — Side-by-Side English Translation (Pius XII Psalter)

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