Dbm7b5 chord
Db half diminished seventh
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G
Gb
Gb5
Ab
A
Bb
B
C
Db
D
Eb
E
F
Gb
G
G
C
C
Db1
D
Eb
E
F
Gb
G
Ab
A
Bb
B
C
Db
E
Eb
Eb3
F
Gb
G
Ab
A
Bb
B
C
Db
D
Eb
E
E
A
Ab
A
Bb
Bb7
C
Db
D
Eb
E
F
Gb
G
Ab
A
B
3
5
7
10
The Dbm7b5 chord has the formula 1, b3, b5, b7 with notes Db, E, G, B
The half diminished seventh chord is a variation of the minor seventh chord and is found in pop, R&B and jazz. It is typically used as a versatile passing chord and its feel is defined by the chord that follows it.