Scottyee,

I am glad to hear from you that you finally find a minimalistic setup for arranger that operates on battery. Can QY70 recognize inverted root chords? I think I saw someone's post(s) that it could not do it. Can you test and let me know about it? It is real nice setup on the road (car, plane) but I play a lot of chords with inverted root.
Besides, which small keyboard controller do you use with the QY70?

Paul Ip