Edge of the World is a concerto for five pianos and orchestra by the American composer Nico Muhly. It was commissioned by the Ravinia Festival and was written specifically for the sibling piano group The 5 Browns, whom Muhly met while attending Juilliard School. The piece was first performed by the 5 Browns and Chicago Symphony Orchestra under the direction of James Conlon on August 9, 2011. Muhly dedicated the concerto to the 5 Browns.[1]