John Barleycorn MUST Live: Music of Traffic’s next Boston-area show is September 18, 2026 at Sanctuary.
John Barleycorn Must Live is a tribute concert honoring the music of the British rock band Traffic, whose members included Steve Winwood and Dave Mason. The title plays on Traffic's 1970 album John Barleycorn Must Die. At a room the size of Sanctuary in Maynard, the show is performed by a tribute act rather than the original musicians.