Play on the last 4 strings, so that you get the bass line on the 6°
fingering as in gipsy stile (you can ommit the 5°th on every but the 4° chord, and play the I-III-VI)
fingering should be like
Abm6 e 4
a x
d 3
g 4
b x
e x
Bbm6 (same as Abm6 just 2 half steps higher)
[ Tab from: https://www.guitartabs.cc/tabs/c/caro_emerald/that_man_crd_ver_2.html ]
B6 e 7
a x
d 6
g 8
b x
e x
Eb7 e 6
a 6
d 5
g 6
b x
e x
E7 as Eb7 just half a step up...
Dbm7 e 4
a 4
d 2
g 4
b x
e x
intro and the main rif
Abm6 Bbm6 B6 Eb7 x2
E7, Eb7
bridge is a Dbm7 - Eb7