B Hungarian minor

B1C♯2D♭3E♯♯4F♯5G♭6A♯7

Harmonic minor with a raised fourth, which puts a second augmented second in the middle of the scale.

Written out

Fig. 2 · B Hungarian minor, ascending

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

BWC♯HDW+HE♯HF♯HGW+HA♯HB

B Hungarian minor is B, C♯, D, E♯, F♯, G and A♯, and back to B.

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

On the same tonic, B harmonic minor differs from it by exactly one note.

Across the first twelve frets of the ukulele its notes fall in 29 places, which is what makes a scale a shape rather than a list.

Found by testing every chord in the catalogue against these 7 sounds, not chosen.