The once named Palestine Symphony Orchestra was:
Founded in 1936 by Polish violinist Bronisław Huberman, as the Palestine Symphony Orchestra and was to provide a safe haven for displaced Jewish musicians fleeing Nazi persecution in Europe.
I seriously doubt any Arab “Palestinians” were part of it. Playing European classical music did not fit their culture.
And most of the time when the term Palestine was used it included lands in the area that cover more than merely what is now Israel.
Palestine was for a very long time an area and not a state itself.
Palestine then was under British rule, and that’s what it was called.
That’s my point. Today people use Palestine to mean exclusively alleged Arabs, and exclusively Muslims. But that is a recent innovation.