How to play a D#7b5 chord on Accordion

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

 

Notes:

D#, Fx, A, C#

Intervals:

R, 3°, dim5°, m7°

Left hand:

D# + A7
(E♭ + B♭♭7)

Fingering:

2 + 5 (bass pattern)

or

3 or 4 + 2 (counter bass pattern)