Parahemif comma
The Hemif is a small 7-limit or 2.3.7 subgroup comma measuring about 12.237 cents. It's the difference between 17-comma and two 64/63s.
| Interval information |
Temperaments
Tempering out this comma in the 2.3.7 subgroup leads to the Hemif temperament.
Etymology
The name Hemif comma was named after the Hemif temperament, which only tempered out this comma.