Singer and guitarist Bob Mould helped pave the way for today’s indie-music industry with bands like Husker Du and Sugar. Now, he’s written a memoir. Today: an indie icon talks about life, love and punk rock. Plus: they’ve been called unlistenable, and now they’re the subject of a new musical. We hear the sometimes troubling, sometimes triumphant tale of The Shaggs. And, we share our picks of the week.