  We investigate the nature of Yu-Shiba-Rusinov (YSR) subgap states induced by
single Manganese (Mn) atoms adsorbed on different surface orientations of
superconducting lead (Pb). Depending on the adsorption site, we detect a
distinct number and characteristic patterns of YSR states around the Mn atoms.
We suggest that the YSR states inherit their properties from the Mn $d$-levels,
which are split by the surrounding crystal field. The periodicity of the
long-range YSR oscillations allows us to identify a dominant coupling of the
d-states to the outer Fermi sheet of the two-band superconductor Pb.
