You'd be very lucky if you find exactly what you want. Failing that, you can search for a MIDI file and edit it for your purpose, e.g. remove the solo part, transpose it to E major and change the sound to your pleasure. You need a MIDI editor (aka "sequencer") for that, which is available for free (ask Bill D for a recommendation). Your friend can play the resulting MIDI file simply from a laptop computer with good external loudspeakers plugged in.