Filmmaker Robert Fantinatto is the director of I Dream of Wires, a new documentary devoted to the history and recent resurgence of the modular synthesizer. Robert got into electronic music as a teenager after seeing giant synths and their mysterious rows of knobs and tangled patch cables on the covers of early synth album's like Walter Carlos' Switched on Bach. In his film Robert charts the development of these electronic music machines, from their origins as room-sized behemoths in the 1950s, to the musician-friendly Moog systems of the 60s and 70s to today as a new generation of electronic musicians have adopted the modular synth as their instrument of choice. On this week's show, I talk with Robert about the history of synths and why they've made such an impressive comeback.