About the F Scriabin scale
F Scriabin is used for impressionist and mystical concert music. Think of it as a five-note scale from the late, mystical harmony of Scriabin. It is F Major Pentatonic with the second lowered.
Its notes are F, G♭, A, C, and D. The formula is H 1½ 1½ W 1½.
Also called Major Pentatonic ♭2 and Vibhas.
One of the notes in F Scriabin is a black key, G♭.