Hi Ray

First Lesson
First decide which is the Master and Slave.
That is are you going to play your piano and get the sounds of the KN5000?
or play the 5000 and get the piano sounds?
If you are playing the piano then the piano is the Master and the 5000 is the Slave.
You will need a midi cable to connect the Master midi out to slave midi in.
You need to set the 5000 to act as the slave.
End of Lesson One.
Regards Bazz3