Circles contain album art; each represents a song. Size of the circle corresponds to number of times sampled. When user hovers over circle, circle will ‘flip’ or be covered by a transparent circle and will contain a number corresponding to the number of times sampled.
A web of title vocabulary; close up
A web of title vocabulary; showing mouse hover action
A web of title vocabulary; general visual
Also, an idea for how to visualize the types of sampling each song has had: