Along the lines of matching music by track rather than by artist would be to allow varying the randomness of the song suggestions. This could perhaps be done by setting an upper limit of the match returned from the getSimilar method, or by "skipping" a node.
I like it. Fathom's interface is partially inspired by the old KPT Texture Explorer, which had a "mutation slider" which allowed you to specify how far the apples should fall from the tree.
Along the lines of matching music by track rather than by artist would be to allow varying the randomness of the song suggestions. This could perhaps be done by setting an upper limit of the match returned from the getSimilar method, or by "skipping" a node.