It was 4:30 p.m. on Saturday, and audience members were being swallowed by a uniform group of 20-somethings, their elbows trapped in a wave of bright flannels and baseball caps, knees driving...

[mediagrid cat="22205"] This weekend’s Boston Calling music festival opened with something of a whimper. Just after 6 p.m. Friday, as dusk began to set in, South African singer-songwriter Gregory Alan...