dubstep vs musical style

dubstep and musical style both are nouns.

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

As nouns, musical style is a hypernym of dubstep; that is, musical style is a word with a broader meaning than dubstep:

dubstep: A genre of electronic music descended from 2-step garage, characterised by its dark mood, sparse, half-step and two-step rhythms, an average bpm of 140 and an emphasis on sub-bass.
musical style: an expressive style of music

Other hypernyms of dubstep include music genre, musical genre.

dubstep (noun)	musical style (noun)
A genre of electronic music descended from 2-step garage, characterised by its dark mood, sparse, half-step and two-step rhythms, an average bpm of 140 and an emphasis on sub-bass.	an expressive style of music