musical theater vs musical comedy

musical theater and musical comedy both are nouns.

Word	Noun	Adjective	Verb	Adverb
musical theater	Yes	No	No	No
musical comedy	Yes	No	No	No

As nouns, musical theater and musical comedy are synonyms defined as:

musical theater and musical comedy: a play or film whose action and dialogue is interspersed with singing and dancing

Other synonyms of musical theater include musical.

musical theater (noun)	musical comedy (noun)
a play or film whose action and dialogue is interspersed with singing and dancing	a play or film whose action and dialogue is interspersed with singing and dancing