Space plays and stops
- Notes and intervals
- CbM3Ebm3Gbm3BbbM3Db5Ab
- Extends
- Cb Dominant 7
Cb Dominant 13, written Cb13, is built from Cb, Eb, Gb, Bbb, Db and Ab: the root, major 3rd, 5th, minor 7th, 9th and 13th.
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 Cb13 as its tritone substitute.