Joey,
Eddy knows alot about the X1oriental keyboard. I am a dealer in California and I speak with Eddy often. You can count on him to fill you in. I'll just offer these words. ...I have sold many different keyboards over the past 31 years and I have sold i30's as well as many other top middle eastern type keyboards. The Solton has become the favorite among my customers with the Generalmusic a close second. You can have 12 dedicated buttons on the keyboard to pick a different tuning and if you want to just change one note you can use the 13 pedal board sold by Solton . You do not need a box to do quarter tone tuning and save many memories. On the Generalmusic WK series you can only have one programmed tuning if you don't buy their AS1 box. If you need prices you can email me please. We are not supposed to exchange prices if we are dealers on this forum. I sometimes give general prices of what you should be able to purchase a product for but the moderator of this site doesn't like the exchange of buyers and sellers on his site.
George Kaye
Kaye's Music Scene
Reseda,California