How To Use The Tr Track Section On The Mpc 2500 ???

HEY WASSUP I HAVE AN MPC 2500 AND IM TRYING TO USE MY MIDI KEYBOARD WIT IT BUT WHEN I RECORD MY DRUMS ON TRACK 1 AN SWITCH TO TRACK 2 TO DO MY MIDI TRACK I DONT HEAR THE DRUM THAT I DID ON TRACK 1.

IM TRYING HEAR BOTH WHILE IM RECORDING MY MIDI TRACK ON TRACK 2

IM NOT SURE IF I EXPLAINED IT THE RIGHT WAY BUT IF YOU UNDERSTAND WHAT IM TALKING ABOUT PLEASE EXPLAIN HOW TO WORK THE "TRACK" SECTION....THANKS!!!

Make sure you have the type switched to "MIDI" and not "DRUM". Or make sure the other track isn't muted.