composer vs Carlos Chavez

composer and Carlos Chavez both are nouns.

Word	Noun	Adjective	Verb	Adverb
composer	Yes	No	No	No
Carlos Chavez	Yes	No	No	No

composer (noun)	Carlos Chavez (noun)
someone who composes music, usually as a profession	Mexican composer of nationalistic works using themes from Indian folk music (1899-1978)