music vs harmonize

music is a noun but harmonize is not a noun.

Word	Noun	Adjective	Verb	Adverb
music	Yes	No	No	No
harmonize	No	No	Yes	No

music (noun)	harmonize (noun)
musical activity (singing or whistling etc.)
punishment for one's actions
any agreeable (pleasing and harmonious) sounds
(music) the sounds produced by singers or musical instruments (or reproductions of such sounds)
an artistic form of auditory communication incorporating instrumental or vocal tones in a structured and continuous manner

music (verb)	harmonize (verb)
	bring into consonance, harmony, or accord while making music or singing
	bring into consonance or accord
	bring (several things) into consonance or relate harmoniously
	sing or play in harmony
	write a harmony for
	go together