Native should be fine for live use. From my experience and understanding, it would be similar to how keyboard players use computers for midi, etc. onstage. You will need an interface. From the interface, just run into the board (front of house), or into your powered monitors of choice. You'll want to make sure you are in "Low Latency" setting in Logic, as well as having sample rate set as low as possible. If you need footswitches, you may be better off going with the rack + Helix control or just the Helix floor or LT models. There may be other ways of doing this live, but this should be a totally usable rig. Hope this helps. Good luck and have fun!