Arches (2010) is a musical composition by Fred Lerdahl for solo cello and large chamber ensemble commissioned by the Fromm Music Foundation for the cellist Anssi Karttunen. A finalist for the Pulitzer Prize for Music in 2011, it was premiered on November 19, 2010, at Miller Theatre, Columbia University, by Karttunen and the Argento Chamber Ensemble.
Arches premiered almost in 2011