I am totally blind, and I downloaded the paid version of the ThumbJam. I believe I am going to enjoy it very much, but I have somehow gotten it in the key of C-Sharp or D-Flat (depending on what you want to call it). I saw a small item in the Help section, but it referred to colors (a bummer for a totally-blind person). Most of my playing will be in D, G, A, C, and once in awhile E. I found the way to set the scale as the Major scale, and I do have the major scale - of D-Flat. So how can I reliably set the key I want without sight? Is there anywhere a good manual that will explain the complete operation of the program? I am by nature a "knob freak", but I also want some good instructions to help me get some practical, usable music out of the app.