musicianship vs art

musicianship and art both are nouns.

Word	Noun	Adjective	Verb	Adverb
musicianship	Yes	No	No	No
art	Yes	No	No	No

As nouns, art is a hypernym of musicianship; that is, art is a word with a broader meaning than musicianship:

musicianship: artistry in performing music
art: a superior skill that you can learn by study and practice and observation

Other hypernyms of musicianship include artistry, prowess.

musicianship (noun)	art (noun)
artistry in performing music	the creation of beautiful or significant things
	the products of human creativity; works of art collectively
	a superior skill that you can learn by study and practice and observation
	photographs or other visual representations in a printed publication