How to play a D7b5 chord on Accordion

AKA: D7(b5), D7/b5, D7(-5), D7 Flat 5, D Dominant 7th b5, D Dominant Seventh Flat Fifth

Notes:

D, F#, A♭, C

Intervals:

R, 3°, dim5°, m7°

Left hand:

D + A♭7
(Cx + G#7)

Fingering:

2 + 5 (bass pattern)

or

3 or 4 + 2 (counter bass pattern)