Performance on violin, dedicated to Spencer Hudson by Ellie Kang. This special acoustic scuplture Murmur in Piedmant Park, Altanta designed by Tristan al-Haddad and his students at Georgia Tech, School of Architecture, created this special amplification installation that was visually simple, yet big in sound. Only those who sat in front of the sculpture could hear hundreds of feet away yet those behind the sculpture didn't hear anything.