What do Don Cheadle, a wide-eyed activist, a high-powered Argentinean lawyer, a sheikh, a rebel fighter, and a UN worker

Google “emotional turmoil,” “skinny jeans,” or “near-death in a bathtub,” and you’ll probably come across a YouTube link for Tegan

Last Thursday, a crowd of smashingly dressed orchestra aficionados shuffled its way into Boston’s Symphony Hall, five minutes late and