G9#11addb5 Dominant 7th
The G9#11addb5 chord is built from the notes G – B – Db – F – A – C#.
Piano sound loads on first tap.
Chord tones, one by one
GRoot
Root
The fundamental note the chord is built on — G.
BThird
Major third
Four semitones — makes the chord major (brighter, happier).
DbFifth
Diminished fifth (♭5)
Six semitones — a flat fifth. Creates instability, typical of m7♭5 and diminished chords.
FSeventh
Minor seventh (♭7)
Ten semitones — the dominant/minor seventh. Adds bluesy tension (7, m7).
AExtension
Ninth (9)
A 9th — colorful extension a whole step above the octave.
C#Extension
Sharp eleventh (♯11)
A ♯11 — the bright, floating Lydian color.
🎼 Related scales
Lydian dominant (acoustic)melodic minor a perfect 4th below
🎹 Modal analysis
This chord implies the Lydian dominant (acoustic) scale; its characteristic note is the ♯11 over a ♭7 (the acoustic sound). It is a mode of the melodic minor a perfect 4th below.
🎸 Genres
Jazz fusion · Modal jazz · Bossa/MPB