Sometimes he attempts to make architecture more like music as in his sound sculptures titled “Urban Musical Instruments” of which “Soundstair” (musical stairs)and “Sonic Forest” are examples. Other times, he develops performance projects which make music more like architecture as in his “Physical Music” series which includes “HeartBeat,” a piece danced by Mikhail Baryshnikov. Much of Janney’s permanent work has sought to create “permanent participatory soundworks for public spaces,” including installations for airports in Dallas, Boston, Miami and Sacramento, Atlanta and the New York City Subway.