Performer: Jesse Mills

John Zorn doesn’t look 60. He looks 35, or whatever age it is where you’re still just about young enough to get away with wearing baggy camouflage pants. “And that’s how it’s done!” he yells through his mic at the end of the first half, over huge applause and cheering from this passionate Barbican audience.

The loosely-affiliated Metropolitan Museum Artists in Concert, now in its ninth season at the museum, illustrates all that is good about music-making among friends – and even family members. Two sets of siblings and numerous old friends were on stage for a concert of music inspired by the completion of the museum’s new wing of American art.