Swift, Andrew. (May 1997), "A brief Introduction to MIDI", SURPRISE, Imperial College of Science Technology and Medicine, archived from the original on 30 August 2012, retrieved 22 August 2012
Swift, Andrew. (May 1997), "A brief Introduction to MIDI", SURPRISE, Imperial College of Science Technology and Medicine, archived from the original on 30 August 2012, retrieved 22 August 2012