Space plays and stops
- Notes and intervals
- Fm3Abm3CbM3Eb
F Half Diminished, written Fm7b5, is built from F, Ab, Cb and Eb: the root, minor 3rd, flat 5th and minor 7th.
Its 3rd and 7th, Ab and Eb, 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, Fm7b5 is the iiø7 of the Minor ii-V Progression in Eb, the viø7 of the Minor i-vi-ii-V Progression in Ab, the iiiø7 of the Minor ii-V to ii-V-I Progression in Db and the viiø7 of the Bird Blues in Gb.