The crowd is in a buoyant mood at the Roundhouse tonight as I catch the tail-end of Talk Heavy’s set, already mid-swell, and it lands with surprising weight, a reminder that even early slots can leave a mark when delivered with intent. When Frank Turner takes the stage with The Sleeping Souls, Turner's easy banter moves like a current through the crowd, every aside met with laughter or shouted agreement. There’s a sense of trust here, built over years and thousands of shows. On cue, he summons a circle pit that spins into existence almost instantly, a whirlpool of bodies under the lights.