C/C++ sound/music programming

I have absolutely no idea where to start on this. I think there are a number of platforms, methods, i really am not sure, can someone point me where to start for this? The only sound programming expirence i have is in java's javax.sound package which is really simple, so please, something with C/C++ (better if only ANSI C, like an API) and other things.

thanx
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