Martin Kennedy writes...

"The empirical concept of ‘persistence’ is used widely in both the hard and soft sciences to describe a state that outlives the process that creates it — memory, in other words.  Those working in musical perception have long tried to understand how our persistence of memory allows us to recall melodies and harmonies that have long since passed.  Of course, composers have long used their own methods of development and motive to burrow musical ideas in the ear of the listener, all the while using their own memories and experience to spur the creation of their works.  In this same vein, the musical material in Persistence is replete with half-remembered memories that trail off, motives that move from light to dark and back again with the passage of time, and the exuberance of life that is carried with us even in times of perseverance."