Heptatonic scale
A heptatonic scale is a scale with 7 tones per equave.
Heptatonic mos scales may be found at Heptatonic MOS. Other heptatonic scales may be found at Category: 7-tone scales.
Equiheptatonic scales are scales with 7 roughly equally spaced tones per octave, common in some musical traditions. The exactly equal form of the equiheptatonic scale is 7edo.
7 equal frequency divisions instead of pitch gives the heptatonic overtone scale, the first mode of 7afdo.