I have same problem, we have technics KN550 in our school music class, and I want to get it connected to a computer.. I just want to get the music recorded to computer, and I'd be glad if I wouldn't need any midi cables and stuff. There are two holes for line out cables in the keyboard (L and R), and while I don't know much about keyboards, I'm asking if it's possible to record music from KN550 with those cables and windows XP or Vista computer. I hope someone wise there can help me..