What's the noun for fugue? Here's the word you're looking for.
fugue
(music) A contrapuntal piece of music wherein a particular melody is played in a number of voices, each voice introduced in turn by playing the melody.
Anything in literature, poetry, film, painting, etc., that resembles a fugue in structure or in its elaborate complexity and formality.
“The DSM-IV says that the frotteurist and the fuguist, despite all conceivable arguments to the contrary, have lost their marbles, period and end of discussion.”