I didn't think PiL could go any more experimental than their previous albums had managed, but they did with Flowers of Romance, a landmark release. It's mostly percussion-based songs with John Lydon doing his weird voice thing over the top of unusual and/or repetitive drum beats. The percussion is provided by both Keith Levene and the masterful Martin Atkins, so it never sounds less than amazing. There are occasional jangly guitar moments and keyboards as well. I can imagine the record execs panicking like gazelles when it went to press.