Hello all. What a useful thread!!
I have managed to connect my yamaha keyboard via a fairly basic midi cable. I had to attach OUT to IN (and vice versatile) on the cables.
I have been able to get guess key game working and gentle piano.
But when I play gentle piano, only the notes that I play myself on the keyboard actually come out of the keyboard speakers. So if I am just playing right hand, then left hand sound comes out of the computer so it is much quieter. I tried turning the computer volume to mute but then there was no sound at all for the other hand.
Anyone have any ideas?!