I have hesitated for weeks to post here with such a basic and possibly stupid problem, but I am at my wits end with this. I run Ubuntu 12.04 on a desktop computer and also on a small notebook. Sound is fine on both of them, and I can play midi files through tiMidity with no problem. I want to use a midi-capable electric piano as an input device, and I reckoned the first thing to do was to get some suitable software and make sure I could play a midi file from a midi editor.

If anyone feels they have the patience to try to point me in the right direction, I shall be very grateful indeed. David