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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

Jeff Ostrowski Attempts to Sing the Easter Introit

Jeff Ostrowski · March 15, 2024

ESTERDAY AFTERNOON, I attempted to sing (and accompany) the ancient INTROIT for Easter Sunday. You can listen to my attempt below. I opted for the Church’s official rhythm, choosing the pipe organ accompaniment by the LEMMENSINSTITUUT. It’s utterly miraculous how we can trace CARMEN GREGORIANUM (Gregorian Chant) going back 1,300 years. For example, here’s how this same INTROIT—“Resurréxi Et Adhuc Tecum Sum”—appeared in a manuscript created sometime during the 1300s:

*  PDF Download • “Resurréxi” (Ancient Manuscript)
—Easter Sunday’s INTROIT in a manuscript created circa 1393AD.

Here’s the direct URL link.

Ancient Music • The Easter Sunday Propria Missae constitute some of the most ancient music we possess. The official edition (“EDITIO VATICANA”) took into consideration the entire Gregorian tradition—not just a handful of manuscripts—and from that tradition created a CENTO. If I live to be 100 years old, I’ll never understand why some singers select a particular manuscript (such as 121einsie|961) and try to apply that manuscript’s groupings or rhythm to the official edition, which is a CENTO. That would be similar to taking pedal markings from a piece by Franz Liszt and applying them (!) to a piece by Johannes Brahms. In other words, the EDITIO VATICANA by its very nature will be similar but not identical to any single manuscript.

Here’s how the Introit from Easter Sunday looked in Yrieix|1040, written (perhaps) circa 1040AD:

I Reject This! (1 of 2) • There are some who claim that all manuscripts after 980AD are worthless from a rhythmic point of view. Even a priceless and magnificent manuscript such as Yrieix|1040 (in their view) is essentially garbage, because it doesn’t correspond to a handful of manuscripts for which they have a predilection. I don’t wish to begin that argument all over again. I would simply say that I reject the notion that we should “toss out” or “consider worthless” “treat as garbage” 98% of ancient manuscripts from the ‘Golden Age’ of CARMEN GREGORIANUM just because certain people feel a strong predilection for 2-3 manuscripts. I don’t think that makes any sense.

I Reject This! (2 of 2) • I’m absolutely convinced that if a dramatic change in rhythm took place around the year 1,000AD we would have evidence of such a change. Moreover, there was no Internet in those days. Nor did telephones exist. Nor did automobiles exist. Nor did airplanes exist. Therefore, even if somebody woke up one morning and decided to dramatically modify (!) the rhythm of Gregorian Chant, it would not have been possible to notify all the other monasteries (in all the other countries). Furthermore, I believe many monasteries would have forcefully rejected such a proposal, choosing to continue singing plainsong the same way—broadly speaking—they always had. Indeed, with each passing day more manuscripts are added (thanks to the Internet) and each one is a like a slow and uncompromising death knell for anyone arguing a dramatic and universal (!) rhythmic change somehow took place circa 1,000AD.

Moslem Music? • When it comes to ancient music that we can know with certainty CARMEN GREGORIANUM (“Gregorian Chant”) is far and away the oldest. If somebody tells you Jewish music is more ancient than Gregorian chant, they’ve been deceived. If somebody tells you that Muslim music is more ancient than Gregorian chant, they’re not telling you the truth. The reason for this seeming contradiction is simple: Roman Catholics figured out how to write down music long before anybody else. We know the ancient Greeks had music, but we have no reliable understanding of it (because Catholics were the first to figure out how to accurately notate music). We know the ancient Jews had music, but we have no credible notation for it (because Catholics were the first to figure out how to accurately notate music). We know that ancient Moslems sang, but we have no contemporaneous documentation for it (because Catholics were the first to figure out how to accurately notate music). On the Internet, you can find gullible singers who try to make Gregorian Chant sound “more authentic” by imitating the way Muslims or Jews—in the year 2024—sing. This is the equivalent of musicological malpractice. Make no mistake about it: Gregorian Chant is the earliest music we can know with certainty.

Here’s the text from Easter Sunday’s INTROIT in Latin:

Resurréxi, et adhuc tecum sum, allelúia: posuísti super me manum tuam, allelúia: mirábilis facta est sciéntia tua, allelúia, allelúia. Vs. Dómine, probásti me et cognovísti me: tu cognovísti sessiónem meam et resurrectiónem meam. Vs. Glória Patri, et Fílio, et Spirítui Sancto. Sicut erat in princípio, et nunc, et semper, et in sǽcula sæculórum. Amen. Resurréxi, et adhuc tecum sum, allelúia: posuísti super me manum tuam, allelúia: mirábilis facta est sciéntia tua, allelúia, allelúia.

Here’s the text from Easter Sunday’s INTROIT in English:

I arose, and am still with Thee, alleluia; Thou hast laid Thy hand upon me, alleluia; Thy knowledge is become wonderful, alleluia, alleluia. Vs. Lord, Thou hast searched Me and known Me; Thou knowest my sitting down and My rising up. Vs. Glory be to the Father, and to the Son, and to the Holy Ghost. As it was in the beginning, is now, and ever shall be, world without end. Amen. I arose, and am still with Thee, alleluia; Thou hast laid Thy hand upon me, alleluia; Thy knowledge is become wonderful, alleluia, alleluia.

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

Filed Under: Articles, PDF Download Tagged With: Carmen Gregorianum, Easter Sunday Introit, Gregorian Rhythm Wars Last Updated: March 15, 2024

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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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President’s Corner

    PDF Download • “Organ Accompaniment”
    Over the past few years, I’ve been harmonizing all the vernacular plainsong Introit settings by the CHAUMONOT COMPOSERS GROUP. This coming Sunday—10 May 2026—is the 6th Sunday of Easter (Year A). The following declaration will probably smack of “blowing my own horn.” However, I’d rank this accompaniment as my best yet. In this rehearsal video, I attempt to sing it while simultaneously accompanying myself on the pipe organ. The musical score [for singers] as well as my organ accompaniment can be downloaded free of charge from the flourishing feasts website.
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 4 May 2026
    A few days ago, the CORPUS CHRISTI WATERSHED Facebook page posted this Gregorian Chant quiz regarding a rubric for the SEQUENCE for the feast of Corpus Christi: “Lauda Sion Salvatórem.” There is no audience more intelligent than ours—yet surprisingly nobody has been able to guess the rubric. Drop me an email with the right answer, and I’ll affirm your brilliance to everyone I encounter!
    —Jeff Ostrowski
    “Rare Photographs” • Hannibal Bugnini
    On 2 September 2025, we included in this article extremely rare photographs of Archbishop Hannibal Bugnini taken in Iran circa 1979. Bugnini had initially been banished by the pope to Uruguay, but he refused to obey. [This is interesting, since Bugnini relied upon ‘blind obedience’ when it came to modifications of the ancient liturgy.] After he refused to obey the order from the pope, Hannibal Bugnini was banished to Iran. You can also watch a short video of Hannibal Bugnini in Iran, dated 10 November 1979. That’s about a week after the USA embassy hostage crisis began in Tehran, and Pope Saint John Paul II had sent the leader of the Iranian Revolution a special letter.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of May (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 Version • “Canon in D” (Pachelbel)
    I published an article on 11 November 2023 called Wedding March For The Lazy Organist, which rather offhandedly made reference to a simplified version I created in 2007 for Pachelbel’s Canon. I often use it as a PROCESSIONAL for weddings and quinceañeras. Many organists say they “hate” Pachelbel’s Canon. But I love it. I think it’s bright and beautiful. I created that ‘simplified version’ for musicians coming to grips with playing the pipe organ. It can be downloaded as a free PDF if you visit Andrea Leal’s article dated 15 August 2022: Manuals Only: Organ Interludes Based on Plainsong. Specifically, it is page 84 in that collection—generously offered as a free PDF download. Johann Pachelbel (d. 1706) was a renowned German organist, violinist, teacher, and composer of over 500 works. A friend of Bach’s family, he taught Johann Christoph Bach (Sebastian Bach’s eldest brother) and lived in his house. Those who read Pachelbel’s biography will notice his connection to two German cities adopted as famous hymn tune names: EISENACH and ERFURT.
    —Jeff Ostrowski
    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

Random Quote

“Orlando de Lassus died in Munich on 14 June 1594, the selfsame day his employer decided to dismiss him for economic reasons. He never saw the letter.”

— New Grove

Recent Posts

  • “Reminder” — Month of May (2026)
  • “Englished” Gregorian Chant • 5 Considerations
  • Simplified Version • “Canon in D” (Pachelbel)
  • PDF Download • “Organ Accompaniment”
  • “Gregorian Chant Quiz” • 4 May 2026

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