There are few concert settings in Britain as naturally dramatic as the Eden Sessions. Nestled within a former clay pit and framed by the iconic biomes of the Eden Project, the venue possesses a unique sense of occasion before a note is even played. On this June evening, the Cornish weather appears determined to play its part too. Persistent rain hangs over the site for much of the day, only to disappear almost on cue as Gary Lightbody, Nathan Connolly and Johnny McDaid walk on stage. It feels as though somebody has edited the weather into the evening’s script.