If you want to play a melody with a different midi instrument than the MIDI IN 1, you should set it on MIDI IN 2 and not MIDI IN 3, and check PLAY NOTES of MIDI IN 2. You can use the MIDI IN 3 for midi controllers
Then the LEFT track will be reserved for this MIDI IN 2 melodies
Using same audio with 2 pro software is usually not possible, unless the audio interface driver has this possibility (multiclient)
Then the LEFT track will be reserved for this MIDI IN 2 melodies
Using same audio with 2 pro software is usually not possible, unless the audio interface driver has this possibility (multiclient)