musician vs artist

musician and artist both are nouns.

Word	Noun	Adjective	Verb	Adverb
musician	Yes	No	No	No
artist	Yes	No	No	No

As nouns, artist is a hypernym of musician; that is, artist is a word with a broader meaning than musician:

Other hypernyms of musician include creative person.

musician (noun)	artist (noun)
artist who composes or conducts music as a profession	a person whose creative work shows sensitivity and imagination
someone who plays a music as a profession