Hi Guys, this is Dave near London. I play a Hohner Morino midi accordion and Ketron XD3 expander. Nothing happens much for us accordionists whilst keyboards move on all the time - Tyros 1 now 2, Roland E80, Korg PA1X etc, then I found your site and would appreciate your opinions/comparisons of the GEM. Giovanni, I am also interested in the Concerto DA200. Thanks people....