ref: c74a338d5bb9c2b4ee26c9b2751d0892c532c7ae
dir: /examples/_midi.orca/
......................................... .#.MIDI.#................................ ......................................... ................################......... ................#..............#......... .....4C4........#..Channel..1..#......... ...4D104TCDFE...#..Octave...4..#......... .....:04C85.....#..Notes.CDFE..#......... ................#..............#......... ................################......... ......................................... ......................................... .........................................