Bb-13#9 Minor 7th
The Bb-13#9 chord is built from the notes Bb – Db – F – Ab – C# – Eb – G.
Piano sound loads on first tap.
Also known as
Bbm13#9
Chord tones, one by one
BbRoot
Root
The fundamental note the chord is built on — Bb.
DbThird
Minor third
Three semitones — makes the chord minor (darker, sadder).
FFifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
AbSeventh
Minor seventh (♭7)
Ten semitones — the dominant/minor seventh. Adds bluesy tension (7, m7).
C#Extension
Sharp ninth (♯9)
A ♯9 — the gritty 'Hendrix' tension over a dominant chord.
EbExtension
Eleventh (11)
An 11th — a suspended, airy color on top of the chord.
GExtension
Thirteenth (13)
A 13th — full, rich top extension.
🎼 Related scales
🎹 Modal analysis
This chord implies the Dorian scale; its characteristic note is the major 6th (13).
🎸 Genres
Modal jazz · Funk · Soul · Rock