The Technics system use two separate system one for midi and on for is own style. Because of that both could'nt play together if you use style and want to play midi with direct access the style will stop. even if you only want to look at the disk content.

The yamaha o/s use midi for both. the style are midi file, so when you want to play midi and style together you don't change the "keyboard mode". With yamaha you can see disk content and also load a midi while you play a style and vice-versa.

I used to be with Technics for a long time... ± 10 years. My last Technics was a KN6000. I change to Yamaha because of that and also now with the PSR-3000 for the half of the price of the KN7000 you have all the same feature execpt the after touch.