Table:
text: 72 equal temperament
Interval size
Interval size
interval_name size_steps size_cents midi_3 just_ratio just_cents midi_6 error_
perfect fifth 42 700 play (help·info) 3:2 701.96 play (help·info) −1.96
septendecimal tritone 36 600  17:12 603.00  −3.00
septimal tritone 35 583.33 play (help·info) 7:5 582.51 play (help·info) +0.82
tridecimal tritone 34 566.67 play (help·info) 18:13 563.38  +3.28
11th harmonic 33 550 play (help·info) 11:8 551.32 play (help·info) −1.32
(15:11) augmented fourth 32 533.33 play (help·info) 15:11 536.95  −3.62
perfect fourth 30 500 play (help·info) 4:3 498.04 play (help·info) +1.96
septimal narrow fourth 28 466.66 play (help·info) 21:16 470.78 play (help·info) −4.11
17:13 narrow fourth 28 466.66 play (help·info) 17:13 464.43  +2.24

text: 72 equal temperament
Interval size
Interval size
interval_name size_steps size_cents midi_3 just_ratio just_cents midi_6 error_
tridecimal major third 27 450 play (help·info) 13:10 454.21 play (help·info) −4.21
septendecimal supermajor third 27 450 play (help·info) 22:17 446.36  +3.64
septimal major third 26 433.33 play (help·info) 9:7 435.08 play (help·info) −1.75
undecimal major third 25 416.67 play (help·info) 14:11 417.51 play (help·info) −0.84
major third 23 383.33 play (help·info) 5:4 386.31 play (help·info) −2.98
tridecimal neutral third 22 366.67 play (help·info) 16:13 359.47  +7.19
neutral third 21 350 play (help·info) 11:9 347.41 play (help·info) +2.59
septendecimal supraminor third 20 333.33  17:14 336.13  −2.80
minor third 19 316.67 play (help·info) 6:5 315.64 play (help·info) +1.03
tridecimal minor third 17 283.33 play (help·info) 13:11 289.21 play (help·info) −5.88

text: 72 equal temperament
Interval size
Interval size
interval_name size_steps size_cents midi_3 just_ratio just_cents midi_6 error_
septimal minor third 16 266.67 play (help·info) 7:6 266.87 play (help·info) −0.20
tridecimal 5/4 tone 15 250 play (help·info) 15:13 247.74  +2.26
septimal whole tone 14 233.33 play (help·info) 8:7 231.17 play (help·info) +2.16
septendecimal whole tone 13 216.67  17:15 216.69  −0.02
whole tone, major tone 12 200 play (help·info) 9:8 203.91 play (help·info) −3.91
whole tone, minor tone 11 183.33 play (help·info) 10:9 182.40 play (help·info) +0.93
greater undecimal neutral second 10 166.67 play (help·info) 11:10 165.00 play (help·info) +1.66
lesser undecimal neutral second 9 150 play (help·info) 12:11 150.64 play (help·info) −0.64
greater tridecimal 2/3 tone 8 133.33  13:12 138.57  −5.24
great limma 8 133.33  27:25 133.24  +0.09

text: 72 equal temperament
Interval size
Interval size
interval_name size_steps size_cents midi_3 just_ratio just_cents midi_6 error_
lesser tridecimal 2/3rd tone 8 133.33 play (help·info) 14:13 128.30  +5.04
septimal diatonic semitone 7 116.67 play (help·info) 15:14 119.44 play (help·info) −2.78
diatonic semitone 7 116.67 play (help·info) 16:15 111.73 play (help·info) +4.94
greater septendecimal semitone 6 100  17:16 104.95  -4.95
lesser septendecimal semitone 6 100  18:17 98.95  +1.05
septimal chromatic semitone 5 83.33 play (help·info) 21:20 84.47 play (help·info) −1.13
chromatic semitone 4 66.67 play (help·info) 25:24 70.67 play (help·info) −4.01
septimal third-tone 4 66.67 play (help·info) 28:27 62.96  +3.71
septimal quarter tone 3 50 play (help·info) 36:35 48.77 play (help·info) +1.23
septimal diesis 2 33.33 play (help·info) 49:48 35.70 play (help·info) −2.36
undecimal comma 1 16.67 play (help·info) 100:99 17.40  −0.73

Question: Among 72 equal temperaments, which interval has the most fairness?

Question: Name the interval larger than 40 steps among 72 equal temperaments. ?