Physical models built from audio and geometrical measurements of 3 alleyways in Palo Alto, CA (namely "F-sharp Alleyway" outside of Antonio's Nut House). The image-source method was used to model reflections, and the phenomenon of tremolo produced by wall canting was observed and modeled. Jonathan Abel, Eoin Callery, Sean Coffin, and Yoo Hsiu Yeh (all from CCRMA, Stanford) also worked on this project.