Hi, I've used that library before, here's a few demos: Mine: https://www.youtube.com/watch?v=ue0e-GpTGbg The creator of the soundfont: https://www.youtube.com/watch?v=QEX-wPn4cHk There's an xml file that contains the GUI for the instrument, load that instead of the sfz file and you'll get a custom i...