Bethel Park junior Sophia Willis took center stage at Carnegie Hall in February. Soph performs the role of Ursula in Disney’s “The Little Mermaid.” Photo by Thomas Evans Photography. For Sophia Willis (Soph), music has always been part of her life—but this year, it reached a whole new level. The 16-year-old junior at Bethel Park High School recently earned the opportunity to perform at Carnegie Hall, a milestone that many young artists only dream of. “It was exhilarating,” sa