Orbison vs composer

Orbison and composer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Orbison	Yes	No	No	No
composer	Yes	No	No	No

Orbison (noun)	composer (noun)
United States composer and rockabilly tenor popular in the 1950s (1936-1988)	someone who composes music, usually as a profession