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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“Except the psalms or canonical Scriptures of the new and old Testaments, nothing composed poetically shall be sung in church, as the holy canons command.”
— Council of Braga, 563AD

The Eight Gregorian Psalm Tones (PDF)
published 25 August 2016 by Jeff Ostrowski

I got tired of searching for this chart online:

    * *  PDF Chart • The Eight Gregorian Psalm Tones

with examples added!