“There’s something rather heartwarming about the return of Jeff Lynne’s ELO. While being a semi-retired rock star, forced out of the fray by the passing tides of fashion, is no one’s idea of a hard life, it’s also not what anyone with a yearning to make music for an audience wants for themselves. It all turned round for Lynne in 2014, when Radio 2’s head of music, Jeff Smith, persuaded him to headl”