I have a sx900 , am use to playing the stages DDeck Yamaha organ which has aftertouch, I miss it on the sx900 but guess just have to adjust :-) hope you found the right keyboard
Hi Janey999, the sx900 is a powerful tool regardless of what you want to use it for.
If you know some MIDI programming, you can control both keyboards (sx900 and DDeck) through the MIDI-DIN 5PIN ports, which are behind each instrument, and then make the corresponding configuration so that one keyboard controls the other, or also combine the two sounds from both sources.
it's just a matter of sitting down calmly and looking into the characteristics of each keyboard.
If you achieve a good configuration you will obtain a powerful sound on both plates, this also depends on other factors such as: Equalizer, and Effects.
I hope this gives you some light on what you are looking for.
Regards.
Hans