Meantone12

! meantone12.scl
!
Meantone[12] in 31edo tuning
12
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116.12903
193.54839
309.67742
387.09677
503.22581
580.64516
696.77419
812.90323
890.32258
1006.45161
1083.87097
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Mode: 6|5 (LsLsLsLLsLsL)

Suggested keyboard mappings:

Central G, providing notes from Ab through C#
Central D, providing notes from Eb through G#
Central A, providing notes from Bb through D#