 Mizugushi and Yokota began investigating different musical genres that would evoke emotional and psychological responses appropriate to produce the primal and synaesthetic experience "Rez" was intended to provide.After hours of investigation it was concluded that due to its digital simplicity which allowed a designer to isolate a single note and to alter the timing of the overall rhythm, the techno genre offered the greatest promise for producing the desired effects.Music coordination was done by a DJ called Ebizoo, who helped incorporate the call and response methods into the in-game score.