ABSTRACT Yago Conde based his 1988 concept design for the Barcelona Olympic Village water fountain on John Cage's indeterminate graphic work Fontana Mix . In this paper, a critique of Conde's work serves as the departure point for an examination of Cagean notions of indeterminacy, an interrogation of the original musical context of Fontana Mix , and the presentation of a distinct methodology (employing NURBS modeling) for proto-architectural representation of Cage's graphic score Variations III .