“I used to skip class,” says Tariq Ravelomanana, recalling his adolescent years at Baltimore County’s Perry Hall High School. “We had a piano room that nobody used, so I could just go in there and play.” And even now, as a skilled musician who records under the name Infinity Knives, he describes what he can play as “anything I could get [his] hands on.” “I borrow instruments [to record],” he says. “I didn’t own a guitar until two years ago.” Ravelomanana, 28, arrived at his intuitive, self-taught musical approach during years of early travel: He was born in Tanzania, moved around Africa throughout his childhood and wound up in Maryland as a teenager. “My dad’s a conservative Muslim, and my mom’s a conservative Christian. So I wasn’t really allowed to listen to music, but I kinda snuc...