piano scale
A♭ major blues
A♭1B♭2C♭♭3C3E♭5F6
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
A♭WB♭HC♭HCW+HE♭WFW+HA♭
What is true of it
A♭ major blues is A♭, B♭, C♭, C, E♭ and F, and back to A♭.
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 A♭
A♭ major pentatonicpentatonicA♭ minor pentatonicpentatonicA♭ bluespentatonicA♭ majormajorA♭ natural minorminorA♭ harmonic minorminor
C maj bluesC♯ maj bluesD♭ maj bluesD maj bluesD♯ maj bluesE♭ maj bluesE maj bluesF maj bluesall 374