What's next for the Grateful Dead's legacy?

Death never stopped the Grateful Dead before. Since Jerry Garcia's death in 1995, a sprawling collection of musicians and fans across generations have kept the band’s legacy alive in different ways. But without members Phil Lesh and Bob Weir, Deadheads are experiencing their first summer where there’s no clear inheritor of the Grateful Dead’s mantle. Where does the music, and the dedicated…