In this interview, Recomposing the City co-directors Sarah Lappin and Gascia Ouzounian talk with Peter Cusack about his recent work, reflecting in particular on relationships between sound, sound art, planning processes, and urban communities. Cusack, a field recordist and sound artist, has been a leading figure in acoustic ecology and soundscape studies for more than two decades. Cusack created one of the earliest collaborative sound mapping projects, Favourite Sounds (1998-), in which he invited people to record, share, and describe positive aspects of their everyday sound environments. Among other things, Favourite Sounds has been influential in inspiring the recent proliferation of online sound maps, establishing a framework for producing collective ideas of soundscape, and suggesting approaches to urban sound that extend beyond noise pollution.