E Dominant 7th Flat 9
E7b9 · Root
Every chord tone stacked from the root up.
Click keys to experiment with the chord
E – G♯ – B – D – F
1 – 3 – 5 – b7 – b9
A flat ninth gives the dominant a strong pull, especially as V7 in a minor key, where Phrygian dominant or the altered scale are common choices. The half-whole diminished scale suits resolutions to major; b9 and the guide tones resolve into the following chord.
The E7b9 chord sounds dark and dramatic, a staple of minor-key resolutions. Its notes are E, G#, B, D, F.