musical genre vs musical style

musical genre and musical style both are nouns.

Word	Noun	Adjective	Verb	Adverb
musical genre	Yes	No	No	No
musical style	Yes	No	No	No

As nouns, musical genre and musical style are synonyms defined as:

Other synonyms of musical genre include music genre.

musical genre (noun)	musical style (noun)
an expressive style of music	an expressive style of music