ref: 5c010682401b65a2b9b7ac421c17897d9f381c6d
dir: /examples/midi.orca/
......................................... .# MIDI #................................ ......................................... ................################......... ................#..............#......... ....I.8.........#..Channel..1..#......... ...B0...........#..Octave...4..#......... ...*............#..Note.....C..#......... ...:04C.........#..............#......... ................################......... ......................................... ......................................... .........................................