A half-diminished arpeggio for guitar (Am7♭5)
Notes, positions, and fretboard fingerings for the A half-diminished arpeggio (Am7♭5): A · C · D# · G.
Instrument
Root
Chord
Triads
Sevenths
Position (CAGED)
Frets15
1224
Chord
Am7♭5
ACD#G
E
B
G
D
A
E
Scroll horizontally to see the whole fretboard
Legend
A
Root
· R
C
Third
· ♭3
D#
Fifth
· ♭5
G
Seventh
· ♭7
Arpeggio sheet
Am7♭5Formula (degrees)
R ♭3 ♭5 ♭7
Notes in key
A C D# G
Typical use
Over VII° half-diminished; II in a minor key.
A half-diminished
The A half-diminished arpeggio is made up of: A · C · D# · G.
The half-diminished arpeggio (m7♭5): diminished triad plus minor seventh, the chord of the vii degree in a major key and the ii degree in a minor key.