Alan

Thank you very much Joe. Yes, I've only looked at the basics so far. Just starting to work with midi and how to integrate the controllers with GB. Everything I've read so far would indicate midi cc#7 is used for volume. I'll dowload the User Guide you mentioned to get the detail for setting that up. I hope to be able to use one of the pedal inputs for volume. Thanks for getting me started in the right direction.

I'm interested in controlling Garageband instrument volume via USB midi from the px5s using either the volume wheel, slider controllers or pedal inputs. I've looked in the documentation but can't find how to set the midi cc# or any other info regarding controlling instrument parameters. Is this possible? If so, I'd be interested in learning how to do this. Thanks