Major add 9 e.g. Bb add9

(4-4-3)

Key C

C D F Bb

Triads in Scale: Bb

Key G

G A C F

Triads in Scale: F

Key D

D E G C

Triads in Scale: C

Key A

A B D G

Triads in Scale: G

Key E

E F# A D

Triads in Scale: D

Key B

B C# E A

Triads in Scale: A

Key F#

F# G# B E

Triads in Scale: E

Key F

F G Bb Eb

Triads in Scale: Eb

Key Bb

Bb C Eb Ab

Triads in Scale: Ab

Key Eb

Eb F Ab Db

Triads in Scale: Db

Key Ab

Ab Bb Db Gb

Triads in Scale: Gb

Key Db

Db Eb Gb Cb

Triads in Scale: Cb

Key Gb

Gb Ab Cb Fb

Triads in Scale: Fb