New releases: Black Flag, Nick Cave, David J, US Festival, Rozz Williams, TMBG, Lou Reed

This week’s new releases include the first new album from Black Flag since 1985, plus a Nick Cave live album, reissues from David J, Lemonheads, Ghost Dance and They Might Be Giants, a posthumous collection from Rozz Williams, a new Lou Reed compilation and a long-awaited US Festival DVD.