The Library of Babel is scored for two five-octave marimbas, commissioned by San Francisco Symphony principal percussionist Jack Van Geem. It was premiered at the Zeltsman Marimba Festival in July 2013, performed by Van Geem and Fumito Nunoya. The title refers to a short story by Jorge Luis Borges, which describes a nearly-infinite library containing every possible book of a certain length and format, in every possible language. In addition to every book ever written or someday to be written, the library includes every possible misprint of these books. As the volumes are organized at random, nobody can ever find anything. Yet, somewhere in the library is the answer to every possible question.