<p>I don’t think they mean a musical performance of yours. I think they are asking how a particular composition (for example) cracked open the door for new insights for you, or something like that. “‘The Art of Fugue’ completely turned my understanding of music inside out, and suddenly I saw music and mathematics as two sides of the same discipline. Now I hear melodies every time I see a new formula, and I’m working on an application to mathematically compare Lady Gaga songs to each other. I still haven’t figured out how to fit the lyrics in, but that will come, I’m sure.”</p>