Is it possible to send tempo info from Garage Band / Logic / Reaper to H9 via bluetooth, and then from the H9 to other devices? If so, how would one configure this in the H9 Control app and the MacOS midi settings? I find midi very confusing. Thanks for your help.
It is possible, but this won't work well. Sending the tempo information over Bluetooth adds too much jitter to the tempo and the devices that are trying to decipher the MIDI clock ticks end up swinging wildly around the true tempo. The mechanism for sending MIDI information over Bluetooth is under Settings.