G9b13addb5 Dominant 7th
The G9b13addb5 chord is built from the notes G – B – Db – F – A – Eb.
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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.
EbExtension
Flat thirteenth (♭13)
A ♭13 — dark altered tension over a dominant chord.
🎼 Related scales
🎹 Modal analysis
This chord implies the Whole tone scale; its characteristic note is the dreamy, suspended ♯5.
🎸 Genres
Impressionism · Film & TV scoring · Jazz