The 5700 was quite an advanced arranger...it had what they called "Super Styles" and "Interactive Accompaniment" which made it a very interesting instrument to play. I would have bought my demo model, but it did not have On-Bass in the fingering modes, so at that time I was using a Roland product for my personal gigs...an E-70 if I recall correctly.

Still, it would be cool if they could bring back those features, especially now with the advancements in technology.

Ian