Hi! I got my OP-Z lately and I am now bouncing my first song into Garageband.
I am recording it through its USB cable and all is fine, but I noticed that the OP-Z also sends some instructions (I guess they are MIDI signals) to Garageband when I push some buttons.
More specifically: when I press PROJECT and then select a pattern it would either mute the current track, solo the current track, max the gain, change the pan etc. depending of which pattern I am selecting / button I am pressing.
Is there a way to set Garageband to listen to the OP-Z USB signal as a sound source and ignore it as MIDI controller?