Kingfrog,
I bought a T3....put my second MIDI 76 note keyboard under it...I was trying!
I wanted to use the lower (left of split) for LH...and the right of split for R3(or to play neat sounds on the Kurz.

Ran into a problem with LH hold functions. Called Yamaha support to see if they had a solution...they told me no we don't. I ask if they would request a fix on a firmware upgrade (next one) they said no...they wouldn't do that...because I didn't need the lower keyboard. They said this is a home keyboard and no one uses a lower keyboard (even though the MIDI functions allow for one)!

Returned the T3. Bought a PA2XPRO.
If it was 76 I would have kept it OR...if the LH features were correct..I would have used it with the lower board and kept it.
I liked it.

Lee S.