Hello cman and Welcome to the Forum
This is a developers DiBo.As You are new to the DiBo, let me tell you that
1)If your consits of a code then you should embed it within the CODE option that is available from the symbol # during posting.
2) Please donot make multiple threads with the same topic (as you have done 2 threads with this topic)
Now to your problem
The above code works for both midi as well as mp3 files.
S = audio.Sound.open("E:\\sound1.mid")
S = audio.Sound.open("E:\\sound2.mp3")
playmidi() ##or playmp3() for mp3 file
Hope that helps