I don’t think that difference is large or well defined. There is a moral and aesthetic judgement that is quite complex. There are obvious examples of objectionable cultural appropriation, like hipsters in native American headdress at a festival.
On the other hand we have things like Django Reinhardt and Stephan Grapelli taking a Russian folk song and performing them it in a Jazz idiom or Steve Reich’s use of African polyrhythms. An aesthetic apartheid where artists are limited to choices from their own cultural background will leave us poorer.
