Ok, right now Im a high school student. I want to be able to play cool stuff on my keyboard like in nin's "the hand that feeds". So I have a midi enabled keyboard, some programs on my comp, but what else do I need? I figured out pieces of it by reading online, like I need 2 midi cables and maybe a midi interface? But there are still gaps in my understanding, like what connects the midi interface to the comp, and if that will create sounds from my computer to my keyboard? I would appreciate any help.