Farr's Tuatara is an energetic and entertaining work for percussion and piano, based on two musical ideas which are heard concurrently at the start of the work. A jaunty, angular, syncopated theme in the piano part is set against fast marimba lines. The musical argument of the work is entirely derived from these two ideas, which are exchanged between the instruments and subjected to development by variation. The percussion part is enhanced through the addition of tom toms and cymbals.