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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

PDF Download • Organ Accompaniment for Kyrie VIII (“Missa de Angelis”) by Jeff Ostrowski

Jeff Ostrowski · August 23, 2022

HE FAMOUS “Mass of the Angels” (Missa de Angelis) often gets a bum rap. It’s certainly the most well-known Mass, and in the 19th century missions, it was sung in Iroquoian. People usually condemn it as being “too reminiscent modern tonality.” Even Dr. Peter Wagner placed it in the category of cantus recentiores. In reality, however, the Kyrie comes from the 1300s. The Sanctus and Agnus Dei are fairly ancient, too. They appear to be ‘contrafact’ settings of O Quam Suavis Est. (At the end of this article, I show some examples of that antiphon.) Anyone who’s skeptical is invited to examine this color-coded chart.

My Favorite Harmonization • Inspired by the great Flor Peeters, I have written an accompaniment for Kyrie VIII. In general, I move the bass-line downwards (stepwise) as the melody in the soprano rises.  I hope you like it:

*  PDF Download • Kyrie VIII (Jeff Ostrowski)
—Kyrie from “Missa de Angelis” harmonized by Jeffrey Ostrowski.

Here’s the direct URL link.

That recording was made yesterday, which was the very first day our choir has returned. I think we’re going to have an awesome choral season!

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

Filed Under: Articles, Featured, PDF Download Tagged With: Amédée Gastoué d 1943, Dom Josef Pothier, Dr Peter Wagner Gregorian, Kyrie VIII, Mass of the Angels, Missa de angelis, Missa dicta de Angelis, O Quam Suavis Est Last Updated: January 10, 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

    “Entrance Chant” • 23rd (Ordinary Time)
    This coming Sunday, 7 September 2025, is the 23rd Sunday in Ordinary Time (Year C). You can download the “Entrance Chant,” conveniently located at the feasts website. I also recorded a rehearsal video for it (freely available at the same website). The Communion Chant includes gorgeous verses in FAUXBOURDON. I attempted to create a rehearsal video for it, and it’s been posted at the feasts website, called by some: “church music’s best kept secret.”
    —Jeff Ostrowski
    PDF Download • 3 September
    According to the MISSALE RECENS, the Feast of Saint Gregory the Great occurs on 3 September (the date Gregory became pope). Formerly, his feast was celebrated during Lent, on 12 March (the day Gregory died). In Latin, the feast is: Die 3 Septembris: S. Gregorii Magni, papæ et Ecclesiæ doctoris. you can download the Latin Introit, the Latin Offertory, as well as the Communion with gorgeous fauxbordon in English. Abbat Joseph Pothier—along with Dom André Mocquereau, Bishop Laurent Janssens, Father De Santi, and other Gregorian superstars—sang with a choir of 1,210 voices (from 36 different Roman colleges) under the direction of Monsignor Antonio Rella. That Mass included the “Alma cohors,” a special SEQUENCE for Saint Gregory…much to the dismay of those who believe in strict adherence to rubrics. The Mass on 11 April 1904 was celebrated by Pope Saint Pius X, at the great GREGORIAN CONGRESS held in Rome “to mark the 13th Centenary of the death of Saint Gregory the Great.” Someday, there’s much I’d love to say about this congress. We even have recordings (!) from it (made in 1904 by the Gramophone Company) with choirs conducted by Dom Pothier, Dom Mocquereau, Dom Janssens, Monsignor Rella, Baron Kanzler, and others.
    —Jeff Ostrowski
    New Bulletin Article • “7 September 2025”
    My pastor requested that I write short articles each week for our parish bulletin. Those responsible for preparing similar write-ups may find a bit of inspiration in these brief columns. The latest article is called: “Professor Bouyer’s Regret.”
    —Jeff Ostrowski

Quick Thoughts

    Solemn “Salve Regina” (Chant)
    How many “S” words can you think of using alliteration? How about Schwann Solemn Salve Score? You can download the SOLEMN SALVE REGINA in Gregorian Chant. The notation follows the official rhythm (EDITIO VATICANA). Canon Jules Van Nuffel, choirmaster of the Cathedral of Saint Rumbold, composed this accompaniment for it (although some feel it isn’t his best work).
    —Corpus Christi Watershed
    Pope Pius XII Hymnal?
    Have you ever heard of the Pope Pius XII Hymnal? It’s a real book, published in the United States in 1959. Here’s a sample page so you can verify with your own eyes it existed.
    —Corpus Christi Watershed
    “Hybrid” Chant Notation?
    Over the years, many have tried to ‘simplify’ plainsong notation. The O’Fallon Propers attempted to simplify the notation—but ended up making matters worse. Dr. Karl Weinmann tried to do the same in the time of Pope Saint Pius X by replacing each porrectus. You can examine a specimen from his edition and see whether you agree he complicated matters. In particular, look at what he did with éxsules fílii Hévae.
    —Corpus Christi Watershed

Random Quote

The Council of Trent taught: “In this divine sacrifice which takes place at Mass, the same Christ is present and is immolated in an unbloody manner, Who once on the Cross offered Himself in a bloody manner. For the victim is one and the same, now offering through the ministry of priests, Who then offered Himself on the Cross; only the manner of offering is different” (Session XXII, cap. 2, Denzinger, n. 940).

— Pope Pius XII (2 November 1954)

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  • PDF Download • 3 September

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