Prometheus scale

The Prometheus scale is so called because of its prominent use in Alexander


Scriabin's symphonic poem Prometheus: The Poem of Fire. Scriabin himself called


this set of pitches, voiced as the simultaneity (in ascending order) C F(sharp) B(flat)


E A D the "mystic chord". Others have referred to it as the "Promethean chord".

Synthetic modes#Hexatonic scales

The augmented scale, also known in jazz theory as the symmetrical augmented


scale, is so called because it can be thought of as an interlocking combination of two


augmented triads a minor second or minor third apart: C E G(sharp) and E(flat) G B.


It may also be called the "minor-third half-step scale" due to the series of intervals


produced