Embeddable Software MIDI Player for Godot Engine 3.3 and later.
* Added some drum track assign group.
* Fixed occured error that set to volume_db before _ready( )
* Added some signals (resets, etc...)
* Improved reuse player finding method
* Fixed hold1 (sustain/dumper pedal) behavior.
* Update demo project.
* Changed GodotMidiPlayer super class to Node
* Signal only mode when MidiPlayer.soundfont is null
* 100% Pure GDScript
* Play Standard MIDI File format 0 and format 1 with SoundFont.
* Emit signals on some MIDI events (changes tempo, lyrics, markers or something).
* Receive raw midi messages
* You can play procedural generate MIDI sequences.