Drawing on a large repertoire, Duff "reads the room", and can entertain a diverse range of audiences. Duff's repertoire includes songs from Canadian artists like The Tragically Hip, Neil Young, Gordon Lightfoot, The Barenaked Ladies, Blue Rodeo, The Guess Who, and Great Big Sea, as well as classic folk and rock from artists like the Beatles, Tom Petty, The Rolling Stones, Leonard Cohen, The Eagles, Van Morrison, and many, many others. Not one to follow a set list, Duff plays his set according to his surroundings and what his audience is responding to. He loves to interact with people and is always open to requests.