music rack vs music stand

music rack and music stand both are nouns.

Word	Noun	Adjective	Verb	Adverb
music rack	Yes	No	No	No
music stand	Yes	No	No	No

As nouns, music rack and music stand are synonyms defined as:

music rack and music stand: a light stand for holding sheets of printed music

music rack (noun)	music stand (noun)
a light stand for holding sheets of printed music	a light stand for holding sheets of printed music