It's great that korg have asked for your comments .
I agree with jerry Trecoce , produce an arranger module (they used to make them a few years ago )
Must be fully midi compatable for use with midi accordions .
Size smaller than the Gem XP and the latest Ketron expander far to big )
Friendly logical O.S
Floppy Drive . USb terminals 2 (as the tyros )
Music finder lists
Right 1, Right2, Right3 (as Tyros)
Flip up / screen as (tyros)
Hard drive
most important fully range of song specific styles i.e Proper Glenn miller styles with all the correct intros, endings !! as per the styles produced by Technics !!!
good choir and female soprano opera singer voice (as per the Technics KN7000) never heard anything as good as this Technics feature .
Wav import of sounds
Top class organ sounds ( from Jazz to the mighty wurlitzer sound of the Blackpool tower ballroom organ !!
Sound technology in the Uk have proper sampled sounds from the Blackpool theatre organ ,and have produced them for the Yamaha T2 and they sound so real and life like it is unbelieveable !!

ability to work with EMc style conversion Software to convert Technics styles to Korg accurately with out having to spend hours tweaking the styles to sound right !!!
Plus all the usual things that you would expect a leading manufacturer to include on the products .

Regards to you all ........Giovanni