I don't know much about this either, but I get the sense this is a matter of interpretation, with the Taliban representing the most extreme interpretation available. Censorship of music has come up in other religions and cultures as well. Living in New England (northeast USA), I am aware of old "blue" laws passed by our Puritan forebears which severely restricted the type of instruments and music which could legally be played. My guess is that music is only banned under the most extreme interpretations of Islamic law, just as it has been under other extremist regimes in other cultures.