I think the GW-7 precedes Roland’s Pianist2 chord recognition feature, but if you haven’t tried it, Russ (I think it first appeared on the BK series) it’s definitely worth checking out for providing very good basslines from ‘normal’ standard piano playing technique.

It works by needing three simultaneous notes before a new chord with the sustain up, but needs FIVE simultaneous notes before it changes to a new chord while you’re sustaining. This simple change makes all the difference to a pianist, and I found I could play fairly freely on piano without anywhere near the amount of chord glitching compared to the old system (which afaik is the basic Pianist recognition on most other brands, too).

The combination of Pianist2 chord recognition and the Dynamic Arranger system (user controlled velocity sensitivity of the accompaniment Parts) got me as close as any arranger has to feeling that the backing is actually ‘listening’ to me! Unfortunately, the only Roland that had both (afaik) was the difficult to find BK9.

But even just Pianist2 mode changes the game if you want to try playing pianistically but still have an auto bass (and other Parts!) follow you without freaking out… 🎹😎