musical style vs music genre

musical style and music genre both are nouns.

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

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

Other synonyms of musical style include musical genre.

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