I've read through this thread a second time, and all I can say is that it is going to be difficult to proceed in this unfocused manner. There are too many topics to be covered in one thread. We've spent decades on some of these individual suggestions.

About some of the things mentioned here so far, though, I do like the idea of giving some love to the Navigator, eliminating the Radio buttons in favor of an indicator, and considering a vertical mixer which I think most people expect to see.

One area not mentioned yet is the basic format of the Chordsheet. There have been good suggestions made in recent years about organizing a cell differently, so each measure has four clearly defined subdividable beats (and more or fewer beats per measure if other time signatures are implemented), so that microchords are made more straightforward and the whole idea of commas is eliminated. This could give a new way to address the suggestions just made above by Rustyspoon and RobertW.

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