After using the TT a lot and being a believer in the product, here are a couple features that would be amazing to see in a future app update if possible:
1. A "Full Spectrum" mode that automatically cycles through chromatic major and minor chords for the guitar's full range of notes in all registers. The time duration between chord changes could be a user-selectable option (i.e. 1-10 seconds) or TT could have a preset time between changes. This would expose the guitar to a wide range of shifting frequencies that, in theory, would help a guitar sound and feel "played in" much quicker for those who can't have their hands on a guitar for several hours every day. A "Randomize" button would also be cool for more abrupt frequency shifts.
2. Custom Scale "User Presets." This would allow the user to program unique chords, tunings, or focused frequencies they want to send to the guitar with the push of a single button rather than manually selecting/deselecting notes every time they want to change their note selections. A bonus feature would be a "Play All" button that cycles through the various presets to simulate chord progressions or custom spot training for stubborn instruments.
Anyway, just thought I'd put it out there. I'd still be a happy customer if these things aren't possible, but one can wish, right?
These are great suggestions and we will be trying to use the forum as a place where we can source new features so this is great. There will probably be a "wish list" forum category eventually.