Space plays and stops
- Notes and intervals
- CbM3Eb2GbbM3Bbb
- Extends
- Cb Dominant 7
Cb Dominant b5, written Cb7b5, is built from Cb, Eb, Gbb and Bbb: the root, major 3rd, flat 5th and minor 7th.
Its 3rd and 7th, Eb and Bbb, 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. F7, a tritone away, has the same two notes the other way up, so it can stand in for Cb7b5 as its tritone substitute.