never thought about it like that.

Religion is of course an abstraction but music is too, but in a glorious way....

Neither can be abstractions though when they are used as a vehicle for change. Crusades, Spanish Inquisition, Clerical law post revolution.... all huge social and civilisation altering events in the name of religion. Music? Well, Woody Guthrie had "this machine kills fascists" etched on the side of his guitar. Far more poignantly, Pete Townsend said of his guitar, "I don't love it, I don't polish it after every performance, I play the fucking thing."

Quite.