You need to plug one keyboard into midi out A in MPC and the other in MIDI out B in MPC...Then switch programs(drum 1) to MIDI. Make sure Midi clock is turned on too. What ever keyboard you have in Midi out a should play all the sounds up to 16A.Then when you switch over to Midi out b,the other keyboard should be there.make sure both keyboards are set up to match tracks. Tracks 1-16a should match with tracks 1-16 in your keyboard,same as 1-16b) I have a Motif Rack that I run though an EPS to trigger sounds and a MPC 2000XL..I run my rack through midi out a...I plan on adding a Fantom or something later that I will plug into Midi out b..Hope this helps you! Peace!
