BMus vs bachelor's degree

BMus and bachelor's degree both are nouns.

Word	Noun	Adjective	Verb	Adverb
BMus	Yes	No	No	No
bachelor's degree	Yes	No	No	No

As nouns, bachelor's degree is a hypernym of BMus; that is, bachelor's degree is a word with a broader meaning than BMus:

BMus: a bachelor's degree in music
bachelor's degree: an academic degree conferred on someone who has successfully completed undergraduate studies

Other hypernyms of BMus include baccalaureate.

BMus (noun)	bachelor's degree (noun)
a bachelor's degree in music	an academic degree conferred on someone who has successfully completed undergraduate studies