One of my favorite hobbies is playing instruments. I've been playing violin since first grade and have also recently been learning Toby Fox music on the piano (I know Undertale and My Castle Town so far!)
Additionally, something that I've always been interested in is music composition. For now, I've been mainly just watching video on music theory (I actually learned the term Leitmotif from an Undertale music analysis), but I'm planning on reading part of a music theory book and practicing music composition more!