For many, Bloc Party exist very much at a specific moment in time: Post the treble laden jangle of The Strokes and as somewhat forefathers to the frenetic melodies of bands like Foals and the hybridisation of electronica, house and old fashioned garage rock. Moving away from this point, some would argue that Bloc Party lose their relevance and quality. The two hiatuses that have underpinned the latter part of the group’s career may have offered solicitous gossip on the newsfeeds but they also seemed increasingly remote. And while two long term members leaving the group may be nothing to sniff at, the band’s…