B major blues

B1C♯2D♭3D♯3F♯5G♯6

Major pentatonic with a flattened third added next to the third — the two live side by side rather than replacing each other.

Written out

Fig. 2 · B major blues, ascending

Every accidental is written in, rather than left to a key signature, so the letters can be read one at a time.

BWC♯HDHD♯W+HF♯WG♯W+HB

B major blues is B, C♯, D, D♯, F♯ and G♯, and back to B.

Its steps are W – H – H – W+H – W – W+H, where W is a whole step and H a half.

Across the first twelve frets of the ukulele its notes fall in 24 places, which is what makes a scale a shape rather than a list.

Found by testing every chord in the catalogue against these 6 sounds, not chosen.