The members of Dead & Company had been chewing on the taut boogie-rock groove of "Bertha" for a good long while at the Forum when John Mayer looked over at Bob Weir in search of a little guidance.
Are we done? Mayer seemed to be asking with his eyes. Or do we keep going? Weir took his hands off his guitar and made a quick rolling motion.
They kept going.
The young pup taking cues from the old dog: That's how it went Wednesday night during the first of two concerts in Inglewood by this unlikely new supergroup pairing three veterans of the Grateful Dead — Weir and drummers Mickey Hart and Bill Kreutzmann — with Mayer, the...