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\subsection{Case Studies: Prior art}  \paragraph{{[}To add: Jazz.{]}} \paragraph{Evolutionary music improvisation systems.}  \citeA{jordanous10} reported a computational jazz improvisation system using genetic algorithms. Genetic algorithms, and evolutionary computing more generally, could encourage computational serendipity. We examine Jordanous's system (later given the name {\em GAmprovising} \cite{jordanous:12}) in the context of our model of computational serendipity: to what extent does GAmprovising model serendipity?  % \paragraph{{[}To add: HR.{]}}