music vs tempo

music and tempo both are nouns.

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

music (noun)	tempo (noun)
musical activity (singing or whistling etc.)	the rate of some repeating event
punishment for one's actions	(music) the speed at which a composition is to be played
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