SiON version 0.65 can play MIDI files !! [SiON v0.652 release note] blog (Japanese); http://d.hatena.ne.jp/keim_at_Si/20120821/p1 blog (English); http://keim-at-si.blogspot.jp/2012/08/sion-v065-is-available-now.html webpage; http://soundimpulse.sakura.ne.jp/sion-midi-player/