Dirt

Dirt is the temperament which tempers out the dirt comma, 1342177280/1162261467, in the 5-limit. The optimal pure-octave tuning of this temperament has a very sharp ~3/2 generator at about 715 cents and a somewhat sharp ~5/4 at about 391 cents which is 19 generators up. 5edo appears to have the optimal patent val for this temperament.