Ah, thank you Jokeyman! That was very helpful.
Hmmm, one last question: I have been playing with the midi in/out, controlling the px560 with the computer daw (cakewalk). I don't undestand very well how this works. I can control only one general midi out in cakewalk. I would like for example to control rythms drums, bass, etc... in the px560, all in the same time It seems to me that the chart you mentioned says I have to adress the channell A-10. But I can't do it in cakewalk. Maybe there is something I didn't understood in cakewalk.
But Is this possible? (meaning: to control more than one instrument with my daw or a controller). Right?
Sorry, I am new to this midi stuff.