Hello Brad, I'm finally sorted. I bought a Yamaha MG06X. Took the output from mixer's Phones to Aud-In of PX560. Since my room is not big, the out from piano's on board speaker are sufficient for now. Thanks for your help.
By any chance, can the vocals coming into PX560 be recorded on MIDI or Audio recorder? I tried with no success. Thought of asking experts on this forum.
Thanks,
Gaurav