Tx Bill, I am reading the lessons...I sort of understand it.

Question.

I understand that when I Midi two keyboards together one becomes a controller and one becomes a slave.

In this case I'm using the Tyros as a controller and a PSR S750 as a slave. When I play a voice on the Tyros, the controller, the voice is sounded on the S750 speakers. Am I hearing the voice of the Tyros or the S750?