
Gig Performer makes it as easy to capture incoming MIDI as audio. Check the Record MIDI Input box in the Recording Options screen and incoming MIDI events from all MIDI devices known to Gig Performer recorded, each device to its own track in a Type 1 Standard MIDI File. Generally, each MIDI device corresponds to a physical MIDI port.
You can see a list of MIDI devices known to Gig Performer by right-clicking any MIDI In module and moving the cursor to the command to see its associated drop-down menu. Another place to see this list is the MIDI Input Devices column of the Rig Manager.
MIDI Recorder captures tempo, as well.