Mon May 22, 2023 8:05 pm
If your keyboards have a midi in, and it acts as a midi thru, then you can just connect the pedalboard to the last manual in the chain. If that doesn't work, yes, you can connect the pedalboard to a USB Midi interface, and that to a USB hub. Just make sure you get a good quality hub that has its own power supply. Bus powered ones are notoriously unreliable with high intensity applications like audio or midi traffic. Also get a good quality midi interface if possible. Make sure the pedaboard is also transmitting on a different channel than the three keyboards as well, or you'll get interference.