F9addb13 Dominant 7th
The F9addb13 chord is built from the notes F – A – C – Eb – G – Db.
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Also known as
F9b13
Chord tones, one by one
FRoot
Root
The fundamental note the chord is built on — F.
AThird
Major third
Four semitones — makes the chord major (brighter, happier).
CFifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
EbSeventh
Minor seventh (♭7)
Ten semitones — the dominant/minor seventh. Adds bluesy tension (7, m7).
GExtension
Ninth (9)
A 9th — colorful extension a whole step above the octave.
DbExtension
Flat thirteenth (♭13)
A ♭13 — dark altered tension over a dominant chord.
🎼 Related scales
Mixolydian ♭6 (Aeolian dominant)melodic minor a perfect 5th below
🎹 Modal analysis
This chord implies the Mixolydian ♭6 (Aeolian dominant) scale; its characteristic note is the dark ♭6. It is a mode of the melodic minor a perfect 5th below.
🎸 Genres
Jazz fusion · Modal jazz · Bossa/MPB