Just as some songs in 12-edo music are composed of only 5 or 7 notes, while others use many more, the level of complexity in chords and melodies varies from song to song.
If you want to make it more complex, you should be able to do so by making full use of 7-limit augmented 6th chords, 11-limit blue notes, and borrowed chords.
At least, I am proposing a method of let western music have the “31-EDO dialect” in very conservative way.
https://t.co/zXbYP9UiuT