Apple Logic Pro /LogicExpress Discussion

well there's not really much else to explain. My keyboard doesn't transmit sounds, just 
midi information. It should be working properly (i've looked in the manuals and have sat 
here till my head's almost burst) as even entering notes physically into a midi track matrix 
screen presents no audio result. There's nothing wrong with the core audio settings (i 
think).
On the reason note, i some how managed to get logic to read and playback the sounds 
rewired from reason whilst an audio track is armed and setup to be rewired through 
reason, but after recording a few bars it played back nothing.