Hi guys, I'm getting closer to my dream of having a 31 guitar and am wondering if some of you usual suspects here would share your thoughts on this fretting idea. I'm asking for you to imagine what you'd think about playing this. I'm wanting to simplify a 31 EDO fretboard tuned in 4ths to make it less cramped, more playable, easier to navigate. Utilizing straight frets - I'm open to fretlets in future but not right now. Along one string, I've removed the least useful intervals resulting in a subset of 19. That is, chromatic scale with #/b accidental differentiation, and an Fb and Cb - much like 19 EDO. Read the C string in my diagram to see this most clearly. On a keyboard, it's a great tuning, most of its modes are solid. However, the lack of factors of 31 mean there is absolutely no way to tune a guitar or create a similar scale that will result in this subset being isolated. That is to say, each string produces the scale in its own key - all 31 notes exist on the fretboard still rather than just 19, and not all intervals are available from all locations. Ontop is the image is a full 31 board. Below is the 19 subset. My first thoughts were that this is chaos and my reduction idea is useless. On closer inspection though, I'm not so sure. -Tuned in 4ths, every fret has barres available with your usual 4th, b7, m3, etc -There are only two frets that have no 5th available to be fingered anywhere -There are only two frets that have no 310c m3 available - these frets have the 890 M6 inversion available. 310+1 octave is available as a barre of course -There are five frets that have no M3 available, nor an octave higher - these frets have the 813 m6 inversion available. -There are nine frets that have no 271c m3 available, nor an octave higher -There are ten frets that have no 348c neutral 3rd available, nor an octave higher -Seven frets have only the sharp major 7th version available. All of these do have the 425 major 3rd or neutral 3rd available to use with it. So what do you think, would the less cramped fretboard be worth it for these limitations and mental complications for you? My main concern is confusion and less strength for modulation, but a full 31 board is equally intimidating in other ways. This does seem quite logical to approach, as if you use the sharper of each paired fret to create a 12 note chromatic scale, these frets have most of the options available (the flatter of the pairs are the less versatile). Why not 19 EDO? Whilst its triads are great, I much prefer the m9 and M7 of 31 - M7 of 19 is a real problem for me. I also like that 31 has a harmonic 7th, neutral 3rd, and flat m3 as options. The 39c trill is fun too. Though certainly the complications of this subset fretting have me considering 19 EDO as an alternative more than I ever have before.