PSR2000.
In the "Directions for use" (manual?)
from the Net I read:
"The (UPPER OCTAVE) button allows the MAIN and LAYER parts to be simultaneously transposed up or down by one octave".
I.e. not only the upper octave will be transposed but the whole right side. Ehhh...
To me it is good I think to be able to play physically one octave up which I transpose down one octave. Therefore my hands will not collide; I am used to two manuals on my old
Ya Electone HS5.
Any comments?

Krix