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antiphonal psalmody
The Chant was created in 1984.
The past tense of "chant" is "chanted."
Yes, the word 'chant' is both a noun (chant, chants) and a verb (chant, chants, chanting, chanted). Examples:
Noun: He recited a chant his mother would say to put him to sleep as a child.
Verb: The crowd began to chant, 'Go, Jimmy, go!".
THe crowd continued to chant.