Apart from the mighty Yes, few prog bands have a musical history as complicated as Big Big Train. Their 2023 incarnation features just one original member – band founder Gregory Spawton – but even bis role on board the prog rock locomotive has changed over the years. He’s transitioned from guitar based duties to playing bass and bass pedals, making him very much the anchor when it comes to live performance. The band weren’t always about performing in front of an audience, of course; for decades, they were notoriously gig-shy and it was only after the arrival of vocalist David Longdon in 2009 that BBT started to think very seriously about the possibility of returning to the stage.