G# Half-diminished Bass Arpeggio
G#m7♭5
Diminished fifth
·
4 notes
·Symbol : m7♭5
Arpeggio Notes
Ab
R
B
♭3
D
♭5
Gb
♭7
Solfège : Lab – Si – Ré – Solb
Arpeggio Structure
Ab
T+½
B
T+½
D
2T
Gb
About this arpeggio
The half-diminished arpeggio (ø) is central in minor jazz progressions on degree ii. Its diminished fifth and minor seventh create tension that calls for resolution toward V7 then Im. Essential for ii°–V7–Im cadences.
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