Space plays and stops
- Notes and intervals
- DbM3F2AbbM3Cb
- Extends
- Db Dominant 7
Db Dominant b5, written Db7b5, is built from Db, F, Abb and Cb: the root, major 3rd, flat 5th and minor 7th.
Its 3rd and 7th, F and Cb, 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. G7, a tritone away, has the same two notes the other way up, so it can stand in for Db7b5 as its tritone substitute.