Tracking Keyboard sounds...

Right now the way I am tracking beats out to my computer program is the outs from my MPC to my interface...but I have a few tracks that I sequenced in the MPC using sounds from my Keyboard. My question is how can I track out those sounds/sequenced to my computer program? My keyboard only has one 1/4" jack which right now I have hooked up to my mixer for monitoring. Any help would by F-A-B-O-L-O-U-S.

Does your keyboard have any other outs than the 1/4 jack? If it doesn't use the single out straight to the Computer programs "IN". Let the midi control the mpc and keyboard.