How to play an A7b5 chord on Accordion

AKA: A7(b5), A7/b5, A7(-5), A7 Flat 5, A Dominant 7th b5, A Dominant Seventh Flat Fifth

 

Notes:

A, C#, E♭, G

Intervals:

R, 3°, dim5°, m7°

Left hand:

A + E♭7

Fingering:

2 + 5 (bass pattern)

or

3 or 4 + 2 (counter bass pattern)