Alt-J at the Bill Graham on a Wednesday night is a rocking reminder of why I go to concerts

A concert is a concert. Life, in its ever-present search for meaning, doesn’t get more Duh than that. You buy a ticket to such an event because there’s a promise of fun to be had. Songs to be sung. But sometimes, there’s an element that gets added to the experience that transforms the aesthetic palette into an auditory and sensual…