About this blogger:
A theorist, organist, and conductor, Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004), and did graduate work in Musicology. He serves as choirmaster for the new FSSP parish in Los Angeles, where he lives with his wife and two children.
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“Philip the presbyter and legate of the Apostolic See said: There is no doubt, and in fact it has been known in all ages, that the holy and most blessed Peter, prince and head of the apostles, pillar of the faith, and foundation of the Catholic Church, received the keys of the kingdom from our Lord Jesus Christ, the Savior and Redeemer of the human race, and that to him was given the power of loosing and binding sins: who down even to today and forever both lives and judges in his successors. The holy and most blessed pope Celestine, according to due order, is his successor and holds his place, and us he sent to supply his place in this holy synod.”
— Council of Ephesus (A.D. 431)

Ridiculously Awesome Sanctus You’ve Never Heard
published 2 February 2016 by Jeff Ostrowski

HEN I FIRST ENCOUNTERED Guerrero’s SANCTUS & HOSANNA, I wasn’t impressed; but then I began to look deeper. I noticed how Guerrero places the ancient chant “Beata Mater” as a Trope in the Soprano, then—to add variety—moves it to the Alto. Scholars are divided on whether, in fact, the Trope would have been sung. 1 It turns out the marvelous melody we mentioned earlier was taken from the end of the chant—how cool is that?

I recorded all the voice parts myself to give an idea how it sounds:

    * *  PDF Download • Guerrero SANCTUS & HOSANNA

The second half of the SANCTUS is based on that same motif. Those Renaissance composers certainly did appreciate “order and structure” in their compositions, and that’s part of what makes their music so great. 2

We don’t spend time denigrating the work of others on this blog. That being said, it is obscene for today’s “liturgical” composers to offer their works as substitutes for composers like Guerrero, Victoria, Nanini, and Palestrina. Comparing them would be like comparing my bank account to Michael Jordan’s—but judge for yourself! Sing through the Tenor line. Sing through the Alto line. See for yourself how dazzling Guerrero can be!

This is the 1st Section only. I hope to add the 2nd Section (“Benedictus”) soon. 3


EQUAL VOICES : YouTube   •   Mp3 Audio

SOPRANO : YouTube   •   Audio

ALTO : YouTube   •   Audio

TENOR : YouTube   •   Audio

BASS : YouTube   •   Audio


1   We have very little information about the precise way this music would have been performed. People have all kinds of hypotheses—for example, regarding whether instruments would have been used—but things get hairy when you ask them “How did you arrive at your conclusion?” I have no trouble believing that the text of this Trope would have been sung. On the other hand, secular songs were also included in such scores, and I’m not sure those would have been sung. Here’s what a famous musicologist told me recently:

Such an inclusion of the text of a source of a cantus firmus is often seen in the fifteenth and early sixteenth centuries. In manuscripts I’ve seen in color, these texts are often red—so maybe “sing the black, think the red.” Stranger things have been done, but I doubt that they would have sung the text of the song.
In any event, we are not allowed to sing Tropes in the Extraordinary Form. That’s why I added the text in italics.

2   By the way, Guerrero has a distinct compositional style, and several of his traits are shown in this Mass setting: penchant for canons; “sneaking in” voices on odd beats, outlining tritones, and even skips of a seventh (over a rest).

3   At the conclusion of the “Benedictus,” the same HOSANNA is sung.