That's a tough one to try to address without more information about your setup. You might try clicking "Options", then "Select Midi Driver or Apple DLS Synth", then clicking the "Midi Drivers Help" button. If that doesn't help, come back and give us some more information about your setup (how is your midi keyboard attached to your computer, how is your sound output, etc.)

Bruce


Macbook Pro 2018
2.6 GHz 6-core Intel Core i7, 16 GB RAM
OS Monterey
BIAB for Mac 2022