MAKE SOUNDS TRIGGER ON MPC FROM MIDI KEYBOARD CONTROLLER

Need help on this one. I know how to control instruments FROM the MPC. But how do I control the MPC's sounds with a midi keyboard. I've been trying everything and nothing seems to work. Seems like I had it working before. I have a M-Audio 02. Your comments and suggestions are appreciated.

Thanks.

do everything the exact opposite!

I figured it out. The Midi Keyboard had to be set to midi out. It was set to USB by default.