So I've got a Kawai CN-390 that I've been trying to connect to my computer and I just can't get it to do anything. What I want to be able to do is play the piano and have sound come out my computer's speakers (which are a lot better than the built in speakers in the piano) and be able to record to my computer's harddrive. Right now I have a midi cable connected to the piano and a cable that converts it to a serial connection, which I've plugged into my computer's sound card. Any help would be appreciated.