Table:
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

Question: From the list of 72 equal temperaments, which is the only interval with a cent size of 150?

Question: How many intervals in 72 equal temperaments have a step size of less than ten steps?