How to play a G#7b5 chord on Accordion

AKA: G#7(b5), G#7/b5, G#7(-5), G#7 Flat 5, G# Dominant 7th b5, G# Dominant Seventh Flat Fifth

 

Notes:

G#, B#, D, F#

Intervals:

R, 3°, dim5°, m7°

Left hand:

G# + D7

Fingering:

2 + 5 (bass pattern)

or

3 or 4 + 2 (counter bass pattern)