It seems as if to start with a simple easy to use PC editor for the Audia could be one of the more cost effective ways for Ketron to go in this area.
The editor would not just be for blind individuals but for everyone who has the Audia. The editor could be use to make third party audio loops playable in styles on the Audio, could be used for style creation, could be used for registration set-up, loading and saving files and folders on the Audia and probably other things.

Since the Audia can connect to the computer by USB all of this should be possible.
Regarding orientation to the button and phisical lay-out of the Audia, a part of the editor could show a vertual view of the phisical Audia and a user can click on a button, slider or knob and get a discription of where that control is and what is it used for. A blind individual could probably use the computer arrow keys to get to the different controls on the vertual Audia displayed on the computer screen. When on a control, they could exicute a computer command like [control + D] and get a discription of where that control is on the audia and what it is used for.
I wonder if software editors are things that keyboard manufacturers are still doing?