What are GiO's MIDI control assignment numbers? Chris April 21, 2021 20:04 Updated Related articles Does GiO work with macOS 10.15 Catalina? How can I verify that the buttons on my GiO are transmitting data? Setting up GiO for GarageBand audio input and output Can GiO be connected to a computer via USB hub? Comments 0 comments Article is closed for comments.