Partially delta-rational tetrads in small edos

Shown below are approximate partially delta-rational tetrads (with signature +a+?+b) spanning an interval < octave, in edos < 24, with least-squares error < 0.001. All delta signatures are in the 3-integer limit ignoring the +? term.

6	(0,1,3,5)	[1, 3]	0.00006
6	(0,2,3,4)	[3, 2]	0.00006
7	(0,1,4,5)	[2, 3]	0.00071
10	(0,1,6,7)	[2, 3]	0.00055
10	(0,3,7,8)	[2, 1]	0.00068
11	(0,1,6,8)	[1, 3]	0.00027
11	(0,2,4,7)	[1, 2]	0.00036
11	(0,2,5,6)	[3, 2]	0.00026
11	(0,3,6,10)	[1, 2]	0.00090
11	(0,3,7,9)	[1, 1]	0.00040
11	(0,4,5,8)	[1, 1]	0.00087
11	(0,4,6,7)	[3, 1]	0.00043
12	(0,1,7,8)	[2, 3]	0.00005
12	(0,2,6,10)	[1, 3]	0.00006
12	(0,2,7,9)	[2, 3]	0.00010
12	(0,3,7,10)	[2, 3]	0.00016
12	(0,3,8,9)	[2, 1]	0.00014
12	(0,4,6,8)	[3, 2]	0.00006
12	(0,4,7,11)	[2, 3]	0.00021
12	(0,6,9,11)	[2, 1]	0.00077
13	(0,1,7,9)	[1, 3]	0.00026
13	(0,1,8,9)	[2, 3]	0.00085
13	(0,2,5,8)	[1, 2]	0.00057
13	(0,2,6,7)	[3, 2]	0.00025
13	(0,3,6,12)	[1, 3]	0.00037
13	(0,3,7,11)	[1, 2]	0.00067
13	(0,3,8,10)	[1, 1]	0.00062
13	(0,4,6,9)	[1, 1]	0.00065
13	(0,4,7,8)	[3, 1]	0.00021
13	(0,6,7,10)	[3, 2]	0.00038
14	(0,1,8,9)	[2, 3]	0.00034
14	(0,1,8,10)	[1, 3]	0.00073
14	(0,2,6,7)	[3, 2]	0.00069
14	(0,2,7,11)	[1, 3]	0.00076
14	(0,2,8,10)	[2, 3]	0.00071
14	(0,3,9,10)	[2, 1]	0.00054
14	(0,4,7,8)	[3, 1]	0.00084
14	(0,4,7,9)	[3, 2]	0.00076
14	(0,5,6,8)	[2, 1]	0.00023
14	(0,8,9,11)	[3, 1]	0.00036
15	(0,1,8,10)	[1, 3]	0.00053
15	(0,1,9,10)	[2, 3]	0.00036
15	(0,2,7,8)	[3, 2]	0.00052
15	(0,2,9,11)	[2, 3]	0.00074
15	(0,3,10,11)	[2, 1]	0.00048
15	(0,4,7,9)	[3, 2]	0.00099
15	(0,4,8,9)	[3, 1]	0.00053
15	(0,5,13,14)	[3, 1]	0.00028
15	(0,6,11,13)	[2, 1]	0.00081
16	(0,1,9,10)	[2, 3]	0.00050
16	(0,1,9,11)	[1, 3]	0.00025
16	(0,1,10,11)	[2, 3]	0.00091
16	(0,2,6,9)	[1, 2]	0.00042
16	(0,2,7,8)	[3, 2]	0.00024
16	(0,3,9,13)	[1, 2]	0.00075
16	(0,3,10,11)	[2, 1]	0.00074
16	(0,3,10,12)	[1, 1]	0.00046
16	(0,4,7,10)	[1, 1]	0.00072
16	(0,4,8,9)	[3, 1]	0.00031
16	(0,5,14,15)	[3, 1]	0.00040
16	(0,9,13,15)	[3, 1]	0.00001
17	(0,1,9,11)	[1, 3]	0.00067
17	(0,1,10,11)	[2, 3]	0.00007
17	(0,1,10,12)	[1, 3]	0.00087
17	(0,2,3,8)	[1, 3]	0.00020
17	(0,2,7,8)	[3, 2]	0.00082
17	(0,2,8,9)	[3, 2]	0.00065
17	(0,2,9,13)	[1, 3]	0.00024
17	(0,2,10,12)	[2, 3]	0.00014
17	(0,3,4,11)	[1, 3]	0.00046
17	(0,3,10,13)	[2, 3]	0.00022
17	(0,3,11,12)	[2, 1]	0.00007
17	(0,4,6,12)	[1, 2]	0.00013
17	(0,4,8,9)	[3, 1]	0.00095
17	(0,4,8,10)	[3, 2]	0.00023
17	(0,4,8,16)	[1, 3]	0.00090
17	(0,4,9,10)	[3, 1]	0.00070
17	(0,4,10,14)	[2, 3]	0.00029
17	(0,4,11,16)	[1, 2]	0.00007
17	(0,5,6,10)	[1, 1]	0.00006
17	(0,5,7,9)	[2, 1]	0.00003
17	(0,5,10,15)	[2, 3]	0.00037
17	(0,5,14,16)	[3, 2]	0.00025
17	(0,5,15,16)	[3, 1]	0.00092
17	(0,6,10,16)	[2, 3]	0.00046
17	(0,6,11,15)	[1, 1]	0.00014
17	(0,6,12,14)	[2, 1]	0.00000
17	(0,7,13,16)	[3, 2]	0.00055
17	(0,8,9,13)	[3, 2]	0.00092
17	(0,8,10,12)	[3, 1]	0.00057
17	(0,9,13,16)	[2, 1]	0.00040
18	(0,1,10,11)	[2, 3]	0.00058
18	(0,1,10,12)	[1, 3]	0.00003
18	(0,1,11,12)	[2, 3]	0.00052
18	(0,2,3,8)	[1, 3]	0.00056
18	(0,2,7,10)	[1, 2]	0.00009
18	(0,2,8,9)	[3, 2]	0.00003
18	(0,3,9,15)	[1, 3]	0.00006
18	(0,3,10,14)	[1, 2]	0.00007
18	(0,3,11,12)	[2, 1]	0.00084
18	(0,3,11,13)	[1, 1]	0.00010
18	(0,3,12,13)	[2, 1]	0.00073
18	(0,4,5,14)	[1, 3]	0.00078
18	(0,4,8,11)	[1, 1]	0.00007
18	(0,4,9,10)	[3, 1]	0.00001
18	(0,5,7,9)	[2, 1]	0.00089
18	(0,5,15,16)	[3, 1]	0.00057
18	(0,5,15,17)	[3, 2]	0.00070
18	(0,6,9,12)	[3, 2]	0.00006
18	(0,8,10,13)	[2, 1]	0.00027
18	(0,9,13,17)	[3, 2]	0.00091
18	(0,9,14,16)	[3, 1]	0.00056
18	(0,11,12,16)	[2, 1]	0.00042
19	(0,1,10,12)	[1, 3]	0.00074
19	(0,1,11,12)	[2, 3]	0.00011
19	(0,1,11,13)	[1, 3]	0.00048
19	(0,1,12,13)	[2, 3]	0.00089
19	(0,2,7,10)	[1, 2]	0.00085
19	(0,2,8,9)	[3, 2]	0.00046
19	(0,2,9,10)	[3, 2]	0.00073
19	(0,2,10,14)	[1, 3]	0.00024
19	(0,2,11,13)	[2, 3]	0.00023
19	(0,3,4,9)	[1, 2]	0.00009
19	(0,3,5,12)	[1, 3]	0.00066
19	(0,3,11,14)	[2, 3]	0.00035
19	(0,3,12,13)	[2, 1]	0.00018
19	(0,3,12,14)	[1, 1]	0.00093
19	(0,4,7,13)	[1, 2]	0.00068
19	(0,4,9,10)	[3, 1]	0.00053
19	(0,4,9,11)	[3, 2]	0.00024
19	(0,4,9,17)	[1, 3]	0.00021
19	(0,4,10,11)	[3, 1]	0.00079
19	(0,4,11,15)	[2, 3]	0.00048
19	(0,5,8,10)	[2, 1]	0.00086
19	(0,5,11,16)	[2, 3]	0.00061
19	(0,5,15,18)	[1, 1]	0.00011
19	(0,5,16,17)	[3, 1]	0.00006
19	(0,6,10,18)	[1, 2]	0.00052
19	(0,6,11,17)	[2, 3]	0.00074
19	(0,6,12,16)	[1, 1]	0.00074
19	(0,6,13,15)	[2, 1]	0.00048
19	(0,7,11,18)	[2, 3]	0.00088
19	(0,7,14,17)	[3, 2]	0.00078
19	(0,8,9,15)	[1, 1]	0.00051
19	(0,8,10,14)	[3, 2]	0.00022
19	(0,8,11,13)	[3, 1]	0.00007
19	(0,9,15,17)	[3, 1]	0.00088
20	(0,1,11,12)	[2, 3]	0.00061
20	(0,1,11,13)	[1, 3]	0.00021
20	(0,1,12,13)	[2, 3]	0.00027
20	(0,1,12,14)	[1, 3]	0.00090
20	(0,2,4,9)	[1, 3]	0.00061
20	(0,2,8,9)	[3, 2]	0.00084
20	(0,2,8,11)	[1, 2]	0.00042
20	(0,2,9,10)	[3, 2]	0.00021
20	(0,2,11,15)	[1, 3]	0.00072
20	(0,2,12,14)	[2, 3]	0.00055
20	(0,3,4,9)	[1, 2]	0.00073
20	(0,3,5,12)	[1, 3]	0.00066
20	(0,3,10,16)	[1, 3]	0.00055
20	(0,3,11,15)	[1, 2]	0.00058
20	(0,3,12,13)	[2, 1]	0.00089
20	(0,3,12,14)	[1, 1]	0.00045
20	(0,3,12,15)	[2, 3]	0.00084
20	(0,3,13,14)	[2, 1]	0.00037
20	(0,4,5,10)	[2, 3]	0.00095
20	(0,4,9,10)	[3, 1]	0.00096
20	(0,4,9,11)	[3, 2]	0.00070
20	(0,4,9,12)	[1, 1]	0.00056
20	(0,4,10,11)	[3, 1]	0.00021
20	(0,4,13,18)	[1, 2]	0.00020
20	(0,5,6,12)	[2, 3]	0.00037
20	(0,5,7,11)	[1, 1]	0.00018
20	(0,5,8,10)	[2, 1]	0.00007
20	(0,5,9,19)	[1, 3]	0.00054
20	(0,5,16,18)	[3, 2]	0.00075
20	(0,5,16,19)	[1, 1]	0.00090
20	(0,5,17,18)	[3, 1]	0.00034
20	(0,6,10,13)	[3, 2]	0.00055
20	(0,6,14,16)	[2, 1]	0.00068
20	(0,7,15,18)	[3, 2]	0.00079
20	(0,8,11,13)	[3, 1]	0.00098
20	(0,8,11,14)	[2, 1]	0.00044
20	(0,9,15,17)	[3, 1]	0.00090
20	(0,9,15,18)	[2, 1]	0.00084
20	(0,10,11,16)	[3, 2]	0.00056
20	(0,11,13,17)	[2, 1]	0.00086
20	(0,12,13,16)	[3, 1]	0.00002
20	(0,13,16,19)	[3, 1]	0.00072
21	(0,1,11,13)	[1, 3]	0.00077
21	(0,1,12,13)	[2, 3]	0.00023
21	(0,1,12,14)	[1, 3]	0.00022
21	(0,1,13,14)	[2, 3]	0.00058
21	(0,2,4,9)	[1, 3]	0.00001
21	(0,2,8,11)	[1, 2]	0.00038
21	(0,2,9,10)	[3, 2]	0.00021
21	(0,2,10,11)	[3, 2]	0.00076
21	(0,2,11,15)	[1, 3]	0.00054
21	(0,2,12,14)	[2, 3]	0.00046
21	(0,3,11,17)	[1, 3]	0.00079
21	(0,3,12,15)	[2, 3]	0.00071
21	(0,3,12,16)	[1, 2]	0.00063
21	(0,3,13,14)	[2, 1]	0.00034
21	(0,3,13,15)	[1, 1]	0.00042
21	(0,3,14,15)	[2, 1]	0.00082
21	(0,4,5,10)	[2, 3]	0.00004
21	(0,4,6,15)	[1, 3]	0.00053
21	(0,4,9,12)	[1, 1]	0.00060
21	(0,4,10,11)	[3, 1]	0.00025
21	(0,4,10,12)	[3, 2]	0.00053
21	(0,4,10,18)	[1, 3]	0.00092
21	(0,4,11,12)	[3, 1]	0.00083
21	(0,4,12,16)	[2, 3]	0.00096
21	(0,5,7,11)	[1, 1]	0.00093
21	(0,5,8,10)	[2, 1]	0.00057
21	(0,5,17,18)	[3, 1]	0.00069
21	(0,5,17,19)	[3, 2]	0.00001
21	(0,5,18,19)	[3, 1]	0.00067
21	(0,6,7,14)	[2, 3]	0.00050
21	(0,6,7,16)	[1, 2]	0.00091
21	(0,6,10,13)	[3, 2]	0.00078
21	(0,6,14,16)	[2, 1]	0.00079
21	(0,8,11,14)	[2, 1]	0.00096
21	(0,8,11,15)	[3, 2]	0.00093
21	(0,8,12,14)	[3, 1]	0.00046
21	(0,9,15,19)	[3, 2]	0.00062
21	(0,9,16,18)	[3, 1]	0.00029
21	(0,14,15,20)	[2, 1]	0.00046
22	(0,1,12,13)	[2, 3]	0.00063
22	(0,1,12,14)	[1, 3]	0.00033
22	(0,1,13,14)	[2, 3]	0.00010
22	(0,1,13,15)	[1, 3]	0.00058
22	(0,1,14,15)	[2, 3]	0.00084
22	(0,2,4,9)	[1, 3]	0.00048
22	(0,2,9,10)	[3, 2]	0.00055
22	(0,2,9,12)	[1, 2]	0.00063
22	(0,2,10,11)	[3, 2]	0.00032
22	(0,2,12,16)	[1, 3]	0.00027
22	(0,2,13,15)	[2, 3]	0.00020
22	(0,3,5,10)	[1, 2]	0.00060
22	(0,3,6,13)	[1, 3]	0.00021
22	(0,3,11,17)	[1, 3]	0.00094
22	(0,3,12,16)	[1, 2]	0.00091
22	(0,3,13,14)	[2, 1]	0.00090
22	(0,3,13,15)	[1, 1]	0.00067
22	(0,3,13,16)	[2, 3]	0.00030
22	(0,3,14,15)	[2, 1]	0.00013
22	(0,4,5,10)	[2, 3]	0.00084
22	(0,4,8,14)	[1, 2]	0.00036
22	(0,4,10,11)	[3, 1]	0.00063
22	(0,4,10,12)	[3, 2]	0.00026
22	(0,4,10,13)	[1, 1]	0.00088
22	(0,4,11,12)	[3, 1]	0.00034
22	(0,4,11,19)	[1, 3]	0.00074
22	(0,4,13,17)	[2, 3]	0.00040
22	(0,5,9,11)	[2, 1]	0.00070
22	(0,5,13,18)	[2, 3]	0.00051
22	(0,5,17,20)	[1, 1]	0.00072
22	(0,5,18,19)	[3, 1]	0.00030
22	(0,5,18,20)	[3, 2]	0.00060
22	(0,5,19,20)	[3, 1]	0.00094
22	(0,6,11,14)	[3, 2]	0.00094
22	(0,6,12,20)	[1, 2]	0.00090
22	(0,6,13,19)	[2, 3]	0.00063
22	(0,6,14,18)	[1, 1]	0.00040
22	(0,6,15,17)	[2, 1]	0.00019
22	(0,7,8,10)	[3, 1]	0.00099
22	(0,7,8,16)	[2, 3]	0.00063
22	(0,7,9,19)	[1, 2]	0.00071
22	(0,7,13,20)	[2, 3]	0.00074
22	(0,7,16,19)	[3, 2]	0.00025
22	(0,8,10,16)	[1, 1]	0.00087
22	(0,8,11,15)	[3, 2]	0.00074
22	(0,8,12,14)	[3, 1]	0.00043
22	(0,8,12,15)	[2, 1]	0.00090
22	(0,8,13,21)	[2, 3]	0.00086
22	(0,9,16,19)	[2, 1]	0.00013
22	(0,10,13,20)	[1, 1]	0.00076
22	(0,12,14,17)	[3, 1]	0.00064
22	(0,12,17,21)	[2, 1]	0.00018
22	(0,13,17,20)	[3, 1]	0.00044
23	(0,1,12,13)	[2, 3]	0.00095
23	(0,1,12,14)	[1, 3]	0.00078
23	(0,1,13,14)	[2, 3]	0.00030
23	(0,1,13,15)	[1, 3]	0.00004
23	(0,1,14,15)	[2, 3]	0.00037
23	(0,1,14,16)	[1, 3]	0.00089
23	(0,2,4,9)	[1, 3]	0.00088
23	(0,2,5,10)	[1, 3]	0.00081
23	(0,2,9,10)	[3, 2]	0.00082
23	(0,2,9,12)	[1, 2]	0.00006
23	(0,2,10,11)	[3, 2]	0.00004
23	(0,2,11,12)	[3, 2]	0.00077
23	(0,2,12,16)	[1, 3]	0.00074
23	(0,2,13,15)	[2, 3]	0.00061
23	(0,2,13,17)	[1, 3]	0.00096
23	(0,2,14,16)	[2, 3]	0.00075
23	(0,3,5,10)	[1, 2]	0.00007
23	(0,3,6,13)	[1, 3]	0.00074
23	(0,3,12,18)	[1, 3]	0.00021
23	(0,3,13,16)	[2, 3]	0.00094
23	(0,3,13,17)	[1, 2]	0.00013
23	(0,3,14,15)	[2, 1]	0.00044
23	(0,3,14,16)	[1, 1]	0.00007
23	(0,3,15,16)	[2, 1]	0.00051
23	(0,4,7,16)	[1, 3]	0.00012
23	(0,4,10,11)	[3, 1]	0.00093
23	(0,4,10,12)	[3, 2]	0.00092
23	(0,4,10,13)	[1, 1]	0.00012
23	(0,4,11,12)	[3, 1]	0.00006
23	(0,4,11,13)	[3, 2]	0.00073
23	(0,4,12,13)	[3, 1]	0.00084
23	(0,4,15,20)	[1, 2]	0.00027
23	(0,5,6,14)	[1, 2]	0.00058
23	(0,5,7,13)	[2, 3]	0.00039
23	(0,5,7,18)	[1, 3]	0.00076
23	(0,5,8,12)	[1, 1]	0.00024
23	(0,5,9,11)	[2, 1]	0.00011
23	(0,5,11,18)	[1, 2]	0.00078
23	(0,5,11,21)	[1, 3]	0.00062
23	(0,5,18,20)	[3, 2]	0.00099
23	(0,5,18,21)	[1, 1]	0.00008
23	(0,5,19,20)	[3, 1]	0.00002
23	(0,6,7,20)	[1, 3]	0.00071
23	(0,6,8,15)	[2, 3]	0.00077
23	(0,6,8,17)	[1, 2]	0.00005
23	(0,6,11,14)	[3, 2]	0.00020
23	(0,6,15,17)	[2, 1]	0.00098
23	(0,7,8,10)	[3, 1]	0.00054
23	(0,7,12,17)	[1, 1]	0.00079
23	(0,7,17,20)	[3, 2]	0.00088
23	(0,8,9,18)	[2, 3]	0.00015
23	(0,8,11,22)	[1, 2]	0.00093
23	(0,8,12,15)	[2, 1]	0.00031
23	(0,8,13,15)	[3, 1]	0.00072
23	(0,8,17,22)	[1, 1]	0.00068
23	(0,9,15,21)	[1, 1]	0.00006
23	(0,9,16,20)	[3, 2]	0.00014
23	(0,9,17,19)	[3, 1]	0.00011
23	(0,10,12,17)	[3, 2]	0.00063
23	(0,11,12,20)	[1, 1]	0.00094
23	(0,11,14,18)	[2, 1]	0.00078
23	(0,11,16,21)	[3, 2]	0.00087
23	(0,12,14,17)	[3, 1]	0.00065
23	(0,13,16,22)	[3, 2]	0.00081
23	(0,14,16,21)	[2, 1]	0.00064