Chop Suey! is a true masterpiece! Heavy riffs alternate with melodic vocals. This song is the best example of the varied song structures of System Of A Down! You simply must have heard how frontman Serj to silent guitar "I cry, When Angels deserve to die" sings, only to let the built-up tower of melody immediately bring the guitar storm again crashing down. I can honestly say that Chop Suey! one of the best songs of a very exceptional band is!