Space plays and stops
- Notes and intervals
- C#M3E#m3G#m3Bb7A
- Extends
- C# Dominant 7
C# Dominant b13, written C#7b13, is built from C#, E#, G#, B and A: the root, major 3rd, 5th, minor 7th and flat 13th.
Its 3rd and 7th, E# and B, 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 C#7b13 as its tritone substitute.