How to play a Bbm(Maj9) chord on Accordion

AKA: Bbm(+7) add2, Bbm(+7) add9, Bbm(maj7) add2, Bbm(maj7) add9, Bbm(maj7/9), Bbm(Δ9), Bbm7+(9), Bbmin maj9, BbminorΔ9, BbminΔ9, BbmM7/9, BbmM9, BbmΔ add2, BbmΔ add9

Notes:

B♭, D♭, F, A, C

Intervals:

R, m3°, 5°, 7°, 9°

Left hand:

B♭ + B♭m + FM

Fingering:

4 + 2 + 3