According to some estimates, just 6 percent of mothers in Peru wash their hands before preparing food. Is it possible that theater could help change this statistic? Art can surely offer personal comfort and emotional healing, but can it influence public health? By helping to develop the Arts for Behavior Change (ABC) program in Lima, Peru, Boston University music professor André de Quadros sought to answer these questions. In his research, teaching, and performances around the world, de Quadros emphasizes using the arts for social change. He spent time with the music department at Washington University this past fall as part of the Distinguished Visiting Scholars Program.