I must say that I fully agree with Guest Observer, who makes an excellent point regarding the fact that we are discussing traditional music.
Most traditional music involves proportioning "blame" for the worlds ills on certain sections of society, certain behaviours or certain races. If we like jeri suggests, attempt to censor what has been written and sung, often for centuries, to placate contemporary sensibilities, we may as well dump traditional music in the proverbial dustbin and move on to the rewriting of literature.
Thence on to the burning of books, instruments, performers......and finally to the real final solution.......the end of freedom of expression.