Mojannab
From Xenharmonic Reference
Mojannab is a type of neutral interval in Iranian classical music corresponding to the neutral second. It is derived by dividing the small minor third on two unequal parts, or by stacking two Pythagorean limmas. Applicable theoretical definitions and classifications were introduced by al-Farabi[1] (870–951 CE) and Safī al-Dīn al-Urmawī[2] (1216-1294 CE).
Categorization
| Type | Range | JI | Western name |
|---|---|---|---|
| Small | 112-120c | 15/14, 16/15, 2187/2048 | Large semitone |
| Medium | 128-151c | 12/11, 14/13, 13/12, 64/59 | Supraminor/neutral second |
| Large | 165-182c | 11/10, 10/9, 65536/59049 | Submajor second, minor whole tone |
