The B Pythagorean Dorian Scale. Note the symmetry between the +3.91 cent 9/8 major second with the -3.91 cent 16/9 minor seventh. Or the -5.87 cent 32/27 minor third to the +5.87 16/9 major sixth. The sound of the Dorian scale owes much to the perfect symmetry of inverse interval classes contained within the octave.
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