ALEX STANILLA is a restless artist in perpetual motion. Since he first picked up an instrument, performing at Carnegie Hall as a 10-year-old violinist, his music has mirrored his own personal growth: What began as disciplined training gradually gave way to self-taught experimentation, the sound of a songwriter learning his craft in real time. Over the years, the Lebanon, PA-based multi-instrumentalist’s songs have continued evolving, dabbling in everything from youthful alternative rock and emo to stripped-back acoustic confessionals, soul-tinged maturity and, now, a bold, collaborative expansion.