ref: 2b9aae195fc6e3fbcb599045d41d867302132aa3
dir: /examples/midi.orca/
......................................... .# MIDI #................................ ......................................... ................################......... ................#..............#......... ....I.8.........#..Channel..1..#......... ...B0...........#..Octave...4..#......... ...*............#..Note.....C..#......... ...:04C.........#..............#......... ................################......... ......................................... ......................................... .........................................