1-3-9-15 by 11/8 bihexany
An 11-limit bihexany. This creates a scale of 1 9/8 55/48 11/9 5/4 11/8 45/32 3/2 55/36 55/32 11/6 15/8 2/1, with steps of 9/8 55/54 16/15 45/44 11/10 45/44 16/15 55/54 9/8 16/15 45/44 16/15. This is is not quite as good as the 1-3-9-15 by 7/6 bihexany, but is still one of the better ways of filling in the gap in the base hexany, as there is no longer a large gap on one side and while it has many quartertone steps, none of them are so small as to be indistinct, it also has 8 perfect 5ths and all but one of them have a choice of either major or minor third plus a neutral one.

! 1-3-9-15_by_11/8_Bihexany.scl ! 1 3 9 15 by 11/8 2-combination Bihexany 12 ! 203.910 235.676 347.407 386.313 551.317 590.223 701.955 733.721 937.631 1049.362 1088.268 1200