music vs alto

music and alto both are nouns.

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

music (noun)	alto (noun)
musical activity (singing or whistling etc.)	the pitch range of the lowest female voice
punishment for one's actions	(of a musical instrument) the second highest instrument in a family of musical instruments
any agreeable (pleasing and harmonious) sounds	the lowest female singing voice
(music) the sounds produced by singers or musical instruments (or reproductions of such sounds)	the highest adult male singing voice
an artistic form of auditory communication incorporating instrumental or vocal tones in a structured and continuous manner	a singer whose voice lies in the alto clef

music (adjective)	alto (adjective)
	(of a musical instrument) second highest member of a group
	of or being the highest male voice; having a range above that of tenor
	of or being the lowest female voice