music vs keynote

music and keynote both are nouns.

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

music (noun)	keynote (noun)
musical activity (singing or whistling etc.)	a fundamental or central idea
punishment for one's actions	(music) the first note of a diatonic scale
any agreeable (pleasing and harmonious) sounds	the principal theme in a speech or literary work
(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)	keynote (verb)
	set the keynote of
	give the keynote address to (an audience)