The document discusses mashups and sampling in music. It begins with a student agreeing with DJs that mashups have a symbiotic relationship with original music similar to how photography benefits from and pays tribute to architecture. The student uses the analogy of a photographer taking a picture of a building to show another perspective without stealing from the architects and builders. Other students further agree with this analogy, noting how mashups can introduce people to new artists and genres, and how viewing music as only the work of a single artist is too narrow since all art builds on influences from the past.