piano scale
B♭ blues
B♭1D♭♭3E♭4F♭♭5F5A♭♭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 A♯ 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
B♭W+HD♭WE♭HF♭HFW+HA♭WB♭
What is true of it
B♭ blues is B♭, D♭, E♭, F♭, F and A♭, and back to B♭.
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 B♭
B♭ major pentatonicpentatonicB♭ minor pentatonicpentatonicB♭ major bluespentatonicB♭ majormajorB♭ natural minorminorB♭ harmonic minorminor
C bluesC♯ bluesD♭ bluesD bluesD♯ bluesE♭ bluesE bluesF bluesall 374