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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

“Part 3 of 3” • Guerrero Kyrie for Our Lady

Jeff Ostrowski · August 13, 2021

HE PROJECT IS COMPLETE! Choirmasters find themselves in need of a brief yet powerful KYRIE ELEISON for their volunteer choirs—and there’s no better choice than Father Guerrero’s De Beata Virgine II (1582AD). It’s a gorgeous composition—but that’s not all. For instance, consider its third section (below). A choir director can explain how the thema comes directly from the plainsong, then describe how Guerrero’s counter-melody is “like a mirror-image” of the thema, and is picked up by the various voices. The choirmaster can also show how each voice has “balance”—in the sense that voices beginning with long values will be reversed later on (and vice-versa).

For all three movements: click here.

Here’s the third (and final) movement:

*  PDF Download • SECTION 3 of 3
—Father Guerrero’s “Missa De Beata Virgine II”
—Edition: Roma 1582AD.

Rehearsal videos for each individual voice await you at #59773.

More Interesting Things: Choirmasters who teach this piece can point out the “connection points.” What are connection points? One would be the Soprano, which gives the Alto its note in measure 1, then “connects” again in measure 4. The same thing (between the same voices) happens in measure 7 and measure 11. Another connection point would measure 11 and measure 14 between Tenor and Bass. And there are tons more! In measures 8-9 there is a tiny little “baby stretto” between Alto and Tenor; and the same thing happens between Bass and Alto in measures 11-12. In measure 5 and measure 12, the Alto voices gives their note to the Soprano voices (an octave higher). These are just a few examples you can share with your choir.

What Is A Trope? During the Middle Ages, most of the Mass prayers were troped. As Father Friel reminds us, Sequences were tropes. The Kyrie was troped. The Gloria was troped. The Agnus Dei was troped. Even the readings were troped. The Kyrie which Father Guerrero uses (see above) is called “Kyrie Cum Jubilo.” In the Editio Vaticana, it’s called KYRIE IX. If you don’t know what a Trope is, please scroll to the bottom of this article:

*  Article • “Reform of the Reform” • Eight Lies We Were Told

No More Tropes: On 20 July 1562, during the 22nd Session of the Council of Trent, a commission of seven prelates was appointed to examine the question of liturgical abuses. Among the Postulata nonnullorum patrum circa varios abusus in missis subinductos—(“Petitions by certain Fathers about various abuses introduced into Mass”)—one finds the following: “Let those additions Mariam gubernans, Mariam coronans be removed from the hymn Glória in excélsis; they seem an unbefitting insertion” (source). On 7 January 1575, Father Guerrero’s chapter in Sevilla decreed that henceforth the Roman rite, as reformed by the Council of Trent, is to be used exclusively. This decree rendered obsolete such “troped” Masses as Guerrero’s De beata Virgine (1566) as well as polytextual Masses, such as his Beata Mater (1566). [But those who have attended the Sacred Music Symposium know that the texts can be altered so these Masses can still be used.]

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

Filed Under: Articles, PDF Download Tagged With: Missa De Beata Virgine II, Piecemeal Polyphony Last Updated: February 26, 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

    Funeral Music “Template” • For Families
    Many have requested the MUSICAL TEMPLATE for funerals we give to families at our parish. The family of the deceased is usually involved in selecting Number 12 on that sheet. This template was difficult to assemble, because the “Ordo Exsequiarum” has never been translated into English, and the assigned chants and hymns are given in different liturgical books (Lectionary, Gradual, Order of Christian Funerals, and so on). Please notify me if you spot errors or broken links. Readers will be particularly interested in some of the plainsong musical settings, which are truly haunting in their beauty.
    —Jeff Ostrowski
    “To Cover Sin With Smooth Names”
    Monsignor Ronald Knox created several English translations of the PSALTER at the request of the Cardinal Archbishop of Westminster. Readers know that the third edition of the Saint Edmund Campion Missal uses a magnificent translation of the ROMAN CANON (and complete Ordo Missae) created in 1950 by Monsignor Knox. What’s interesting is that, when psalms are used as part of the Ordo Missae, he doesn’t simply copy and paste from his other translations. Consider the beautiful turn of phrase he adds to Psalm 140 (which the celebrant prays as he incenses crucifix, relics, and altar): “Lord, set a guard on my mouth, a barrier to fence in my lips, lest my heart turn to thoughts of evil, to cover sin with smooth names.” The 3rd edition of the CAMPION MISSAL is sleek; it fits easily in one’s hand. The print quality is beyond gorgeous. One must see it to believe it! You owe it to yourself—at a minimum—to examine these sample pages from the full-color section.
    —Jeff Ostrowski
    Heretical Hymns
    As a public service, perhaps a theologian ought to begin assembling a heretical hymns collection. A liturgical book—for funerals!—published by the Collegeville Press contains this monstrosity by someone named “Delores Dufner.” I can’t tell what the lyrics are trying to convey—can you? I detest ‘hymns’ with lines such the one she came up with: “Let the thirsty come and drink, Share My wine and bread.” Somehow, the publication was granted an IMPRIMATUR by Most Rev’d Jerome Hanus (bishop of Saint Cloud) on 16 August 1989. It’s a nice tune, but paired with a nasty text!
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of Febr. (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
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

“From six in the evening, his martyrdom had continued through the ghastly night until nine o’clock in the morning. After fifteen hours of torture rarely if ever surpassed in the bloody annals of the Iroquois, the soul of Gabriel Lalemant was freed from its charred and mutilated prison and summoned to join his comrade Jean de Brébeuf in the radiant splendor of God. March 17th, 1649, was the date; for Brébeuf it had been the sixteenth.”

— ‘Fr. John A. O’Brien, speaking of St. Gabriel Lalemant’

Recent Posts

  • Funeral Music “Template” • For Families
  • “To Cover Sin With Smooth Names”
  • Heretical Hymns
  • Alphabetizing Hymn Titles Inside Hymnals • “Does This Make Any Sense?”
  • Fulton J. Sheen • “24-Hour Catechism”

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