So I have been trying to get into recording scene for a while and have been somewhat successful so far. I do, however, have a very small budget (maybe 100 bucks evey few months and $200-300 once or twice a year) so my resources are limited and I have to choose things carefully. I hear about MIDI all the time and have a very basic idea of what it is. What I don't know is why it is so great and what it can be used for. I have been considering getting a MIDI keyboard but I have also wanted to get a synth for a while too (a microkorg is what I've been leaning towards). I have a Yamaha PSR-217 and that has a MIDI output, but I don't know if that would work the same as a keyboard designed for MIDI. If someone could just explain how midi is used and why it is so useful, it would be greatly appreciated. Also, some tips on what kind of keyboard/controller is best would be good. I have been leaning towards an Alesis, but I haven't heard too much about that company, but they do have some fairly cheap choices. Thanks for any help.