How can I connect my midi4+ to my Apogee Duet 2 for iOS so I can use the audio from my iPad Air. I have my FA-06 connected to the midi din1 to use as a midi controller. I have the iPad Air connected to USB device jack 1. If this is not possible then what audio interface do I need to receive iPad Air audio from the midi 4+ for my live rig. I am trying to accomplish this without buying a laptop.