Rehearsal space Rock Shanghai celebrates the bands grinding it out in Shanghai - the lifeblood of the underground scene with a killer showcase over at Cave Art Venue. And what a spread - from heavier acts like operatic death metal stalwarts Urizen Society to rugged grunge purveyors PRANK - rubbing shoulders with garage rock peddlers Hey!Lily! and Britpop aficionados Burley Quay. Should be a diverse, riotous night of tunes.