How do you survive lockdown with your twin brother? For Josh and Jake Kiszka, Greta Van Fleet’s singer and guitarist respectively, it’s all about space. Happily their capacious Nashville pad, where they’ve hunkered down for the past year, has plenty of that. Listening to them chat about their living situation over Zoom – with a curious mix of schoolboy gusto and the self-assurance of two worldly hippies – it’s hard not to think of childhood sleepovers (with a bigger budget).