I've got an old Yamaha PSR-530 connected to my PC via a usb-midi adapter and wanted to investigate the XG parameters using this software. (I've seen youtube videos of hardware sequencers(?) sending messages to change reverb/frequnecies etc - and though I could use this sofware to do the same. Eg https://www.youtube.com/watch?v=QwUWwhrJQbY),
I've been into options and set the midi/xg synth up.
I've been view/midi/keyboard - and clicking a key produces sound on the keyboard.