Adelaide stalwart Mr V is open from 10am, with new and secondhand vinyl, Record Store day releases, CDs and DVDs. Plus local bands from noon including Don Morrison, Frets Patrick, Lead Worm, David Robinson, Cowboys of Love, The Idea of Light, Davy T and El Jay. Every band will play at least one Chuck Berry song in tribute to the late great rock’n’roll legend. It’s going to be rather large.