A simple midi parser easily modifiable to add functionality or to quickly use to debug midi files
Copy the SimpleMidiParser.kt file into your codebase. You can then modify the file at your will or simply use it as it is.
The parser splits the stream into arrays which contains the header chunk and all the track chunks.
If you want to modify how the midi events are parsed you will need to look into the function
extractMidiEventsFromByteArray. There is a switch case which looks at the first 4 bit of the
status byte of an event and parse it according to its type.
Official midi specs: https://www.midi.org/specifications
Old Midi File Format Tutorial Page: http://www.music.mcgill.ca/~ich/classes/mumt306/StandardMIDIfileformat.html#BM2_3
MuseScore forum post about 0 velocity note on event: https://musescore.org/en/node/115586
Old blog post about 0 velocity note on events: https://www.kvraudio.com/forum/viewtopic.php?p=4167096