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+/*
+
+header file for common functions used by the externals of the "frank framework".
+
+the frank framework is a set of pd externals implementing AI agents for improvisation.
+
+Authors:
+Davide Morelli http://www.davidemorelli.it
+David Plans Casal http://www.studios.uea.ac.uk/people/staff/casal
+
+*/
 
 // here i put common data structures and functions