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The 381 equal division divides the octave into 381 equal parts of 3.150 cents each. It tempers out the vulture comma, |24 -21 4>, in the 5-limit and 6144/6125 and 250047/250000 in the 7-limit. It provides the optimal patent val for the porwell planar temperament tempering out 6144/6125, and nessafof, the 15&69 tempering out it and the landscape comma 250047/250000.