Dbadd9 chord
Db added ninth
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G
Gb
G
Ab5
A
Bb
B
C
Db
D
Eb
E
F
Gb
G
Ab
C
C
Db
D
Eb9
E
F
Gb
G
Ab
A
Bb
B
C
Eb
E
Eb
E
F3
Gb
G
Ab
A
Bb
B
C
Db
D
Eb
E
F
A
Ab
A
Bb
B
C
Db1
D
Eb
E
F
Gb
G
Ab
A
Db
3
5
7
10
The Dbadd9 chord has the formula 1, 3, 5, 9 with notes Db, F, Ab, Eb
The added ninth chord can be built by taking a major chord and adding the 9th of the scale. It serves a similar purpose to the major chord, with the additional extension for color or harmonizing with other instruments.