piano scale
F♯ blues
F♯1A♭3B4C♭5C♯5E♭7
Minor pentatonic with one note squeezed in between the fourth and the fifth. It is written as a flattened fifth, so the fifth letter carries both of them and the fourth keeps its own.
The same sounds spelled from the other side are G♭ blues.
Written out
Every accidental is written in, rather than left to a key signature, so the letters can be read one at a time.
The step pattern
F♯W+HAWBHCHC♯W+HEWF♯
What is true of it
F♯ blues is F♯, A, B, C, C♯ and E, and back to F♯.
Its steps are W+H – W – H – H – W+H – W, where W is a whole step and H a half.
Chords made only of these notes
Found by testing every chord in the catalogue against these 6 sounds, not chosen.
Other scales on F♯
F♯ major pentatonicpentatonicF♯ minor pentatonicpentatonicF♯ major bluespentatonicF♯ majormajorF♯ natural minorminorF♯ harmonic minorminor
C bluesC♯ bluesD♭ bluesD bluesD♯ bluesE♭ bluesE bluesF bluesall 374