143edo

143edo is a scale which divides the octave into 143 equal divisions of approximately 8.392¢. The 143b val provides a tuning almost identical with that of the POTE tuning for 7-limit meantone (quarter comma meantone).

As 143 is 11*13, 143edo allows the polymicrotonal juxtaposition of 11edo and 13edo, that is, it can be used to play 11edo and 13edo music at the same time with the 143/13 and 143/11 vals respectively. The resulting scale would have 23 tones in the octave. It's impossible to have 24, because the scales will always overlap.