Lyric discussion by Blocfan 

Cover art for Riding The Fourth Wave lyrics by Streetlight Manifesto

the trumpet solo in this represents how oppressive the US government issue is, quite clear on that one i think

also the drumming quite clearly represents tomas' best friends' heart racing before he is about to commit suicide... then the guitaring represents how Tomas talks him down and prevents him from doing so

The trombone part just represents how much of a problem STI s are in modern day society