Space plays and stops
- Notes and intervals
- Bm3Dm3FM3A
B Half Diminished, written Bm7b5, is built from B, D, F and A: the root, minor 3rd, flat 5th and minor 7th.
Its 3rd and 7th, D and A, are its guide tones: they say what kind of chord it is, so voicings are built around them and the root is often left to the bass.
In the progressions here, Bm7b5 is the iiø7 of the Minor ii-V Progression in A, the viø7 of the Minor i-vi-ii-V Progression in D, the iiiø7 of the Minor ii-V to ii-V-I Progression in G and the viiø7 of the Bird Blues in C.