Beck roars out in Metro opener

Envy those who have tickets to this solid, eclectic sold-out concert. If ever there was a male waif, it’s Beck Hansen. Thin and slight, his frame gives off the misleading impression that he’s a small child playing at being a rock star. But Thursday – in the first of two sold-out nights at Metro – the multitalented musician roared out with confidence and turned in one of his most solid, eclectic sets. Beck’s music personifies what now has become a generic definition for “alternative.”