Instrument Track MIDI Input
Pro Tools | First lets you assign specific MIDI ports and channels to an Instrument tracks’ MIDI input. The default selection of All receives all incoming MIDI data from all ports on all channels. Use the MIDI Input selector to specify a MIDI port and channel for input.
Channels in use by another track input appear bold in the MIDI Input pop-up menu.
To assign an Instrument track MIDI input:
Click the track’s MIDI Input selector and assign a port and channel for MIDI input. Channels already assigned to another track appear in bold.