I'd like know how a drummer or percussionist should handle a change in the time signature of a piece such the one found in Low Light by the Pearl Jam.
I am familiar to syncopation as "placement of rhythmic stresses or accents where they wouldn't normally occur" and I understand more clear change in the time signature (such change from 4/4 to 12/8).
My problem here is what to do when just single or few measure add or remove something (e.g. have a single 9/8 measure in a 6/8-based song, that is how I kind of now understand the linked 'Low Light'). This feels counter-intuitive to me as a percussionist trying to keep the time for the other musician!
PS: few days ago I was unaware both of the existence of such time signature shifts and the fact that question about specific works are (sadly?) not accepted on this site so I originally asked clarification on the time signature of Low Light by Pearl Jam here. Please also note that here I am more interested in understanding how a drummer/percussionist should handle these signatures in general.