You can record multiple MIDI input devices simultaneously, each device representing a unique performance and triggering different sounds, on multiple software instrument tracks at the same time you record multiple audio sources.
Before you start recording, make sure you create tracks for each instrument you want to record and connect a music keyboard to your computer. Also, follow the procedures outlined in Before recording audio.
When Enable Complete Features is selected in Logic Pro > Settings > Advanced, you can record multiple MIDI input devices simultaneously to multiple software instrument tracks.
In the Track inspector for each software instrument track, use the MIDI In Port and MIDI In Channel pop-up menus to choose a unique MIDI port and (optionally) a MIDI channel that matches the MIDI output port and channel for the MIDI input device sending to that specific track. For more information about track parameters, see Edit track parameters.
Click the Record Enable button
in the track header of each track you want to record to. Each clicked Record Enable button turns red to indicate that the track is ready for recording.
Move the playhead to the point in the ruler where you want to start recording.
Click the Record button
in the control bar (or press R) to start recording.
Recording begins after the predefined count-in.
Use each MIDI input device to record software instrument parts, and start singing or playing instruments to record audio.
Click the Stop button
in the control bar (or press the Space bar) to stop recording.