What is the purpose of MIDI IN on a controller? I.E. My Axiom 61 has a MIDI IN, THRU, and OUT. But the E-Mu X-Board has only an OUT. What good are the MIDI IN and Thru on the Axiom? The axiom has no use for MIDI IN from what I can see? Same as the Korg padKontrol, it is a MIDI controller with an IN. For daisy chaining don't you only need an OUT? Each device needs its own specific IN on the computer.