While contemplating your goal of being a music star, it’s smart to have something to fall back on. For singer-songwriter Suzie Brown, that meant getting her MD at Harvard, a Master of Science in Translational Research from the University of Pennsylvania, then practicing cardiology. That’s right, Brown—whose first full-length, Heartstrings, drops May 24—is no slacker. And it’s with that same resolve that she decided one day to defer her dream no longer.It happened at her friend’s wedding in June 2009. Brown was goaded to jump on stage at the reception, where she sang one of her favorite tunes, Bonnie Raitt’s “Angel From Montgomery.” The crowd fell silent. This, she discovered, was a good thing: They were awestruck by her honey-twanged voice. “The whole weekend, people were coming up to me asking if I was a musician,” says Brown. “It gave me that little bit of extra confidence I need to take the plunge and start writing songs.” Just six months later, she’d find fans in folk-jazz artist Amos Lee and country gr