7-EDO
For a general introduction to EDO and these presets, please visit Introduction to EDO tunings.
About this tuning
7 tone equal temperament is a form of EDO tuning (equal divisions of an octave). It divides an octavePitches an octave apart have a 1:2 (“one-to-two”) frequency ratio. If one pitch is at 200 Hz, a pitch an octave higher is at 400 Hz. A pitch an octave lower is at 100 Hz.Visit the link to learn more into seven proportionally equal and equal sounding intervalsAn interval is the distance between two pitches. It can be measured as a ratio between their frequencies or in cents.Visit the link to learn more.