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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"Although the Mass contains much instruction for the faithful, it has nevertheless not seemed expedient to the fathers that it be celebrated everywhere in the vernacular. The holy synod commands pastors and everyone who has the care of souls to explain frequently during the celebration of the Masses, either themselves or through others, some of the things that are read in the Mass, and among other things to expound some mystery of this most Holy Sacrifice, especially on Sundays and feastdays."
— Council of Trent, XII:8 (1562)

New Gloria Mixing Plainsong w/ Polyphony
published 14 June 2016 by Jeff Ostrowski

HE FOLLOWING SETTING did not exist before yesterday night, so technically it’s “new.” However, all I did was apply falsobordone from Lodovico da Viadana (d. 1627) to GLORIA IX—so it’s not really new. For centuries, plainsong (“without meter”) was mixed with polyphony (“mensural music”), but these days it’s not as common. I recorded the voice parts, to help my choir learn—but it will sound better with a full choir, and we currently have about 35 singers.

The polyphony begins at the 0:37 mark:

    * *  PDF Download • Viadana Falsobordone w/ Plainsong


EQUAL VOICES : YouTube   •   Mp3 Audio

SOPRANO : YouTube   •   Audio

ALTO : YouTube   •   Audio

QUINTUS : YouTube   •   Audio

TENOR : YouTube   •   Audio

BASS : YouTube   •   Audio

Before using this piece, teach your choir GLORIA IX. You can download the score for your singers, and—to help them learn—consider this organ accompaniment by Flor Peeters:

    * *  PDF Download • Organ Accompaniment by Flor Peeters

I love Flor Peeters very much, and his accompaniment is fine—but it’s not his best. Perhaps he was in a hurry!