piano scale
F♯ major blues
F♯1G♯2A♭3A♯3C♯5D♯6
Major pentatonic with a flattened third added next to the third — the two live side by side rather than replacing each other.
The same sounds spelled from the other side are G♭ major 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♯WG♯HAHA♯W+HC♯WD♯W+HF♯
What is true of it
F♯ major blues is F♯, G♯, A, A♯, C♯ and D♯, and back to F♯.
Its steps are W – H – H – W+H – W – W+H, 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♯ bluespentatonicF♯ majormajorF♯ natural minorminorF♯ harmonic minorminor
C maj bluesC♯ maj bluesD♭ maj bluesD maj bluesD♯ maj bluesE♭ maj bluesE maj bluesF maj bluesall 374