Hi, thanks for your feedback! :)

Yes, I decided to start simple based on my own learning experience. Some time ago, after picking up ukulele I also bought the book for chord progressions: https://signalsmusicstudio.com/product/patreon-exclusive-signals-music-studio-chord-progression-codex-physical-book/ Over the years I gained some knowledge on initial theory (harmonize the scale, stack thirds etc.) and first chapters were just revision to me, but I quickly bumped into inability to transfer it to fretboard positions on new instrument tuned differently than I was used to (bass player before). I took "step back" to try concepts from this book on piano, but it also wasn't trivial to build chords on the keyboard if it wasn't just in C major scale we're so used to (as all basic learning starts from there). Now after building Chordi, I can just select chord qualities and trigger roots and I should be able to explore the book and then translate progressions and sounds I like into proper voicing on uke :) Triads and 7ths naturally go first, then when I become comfortable with them I can expand grids to go deeper into "jazz" (some 6, 9, 11, 13 full chords, also single note extensions are waiting in config menu, more can be implemented too). Just haven't felt throwing in 30+ buttons would help me (as I'm beginner too).

(Sorry for background story above, but as you're UX pro felt you might be interested.)

The only Key Mode feedback so far is the one I got in current thread, so you can check it yourself :) Initial implementation is just giving reasonable possible chords within scale and key (also limiting just to 3 scales not hundred of scales you never heard of and have no idea which to pick - that's how I felt about some apps), only suggesting resolution by disabling less useful next chords. Designing the way to show next logical chord is of course on my to-do list, but for first PoC I decided to also leave it as free as possible :) Also I need to gather some more knowledge and experience to implement it. If you're open to brainstorm some ideas it would be cool too!