Yes, The Stranglers started out as kind of a punky version of The
Doors perhaps - the keyboards added an element that the other punk
bands did not have. He didn't really admit it at the time (wasn't cool
to do so) but Dave Greenfield does say now he's a prog fan, Wakeman
etc etc. On one of theie very early recordings, a song called
"Tomorrow was the Hereafter," you can hear him make the hammond wail
and crash a la Keith Emerson (and until someone mentions it you don't
realize the vocals have a bit of a Greg Lake thing happening too).
If I had to single out one album it would have to be :"The Raven"
though...it's fantastic, not a bad track on it. More a prog album than
a punk album...loads of great synth stuff, odd time signatures and
rhythms...great stuff.