Dream Machines tracks the music's evolution from early avant-garde experiments after World War Two through psychedelia, art-rock and synth-pop to electronic dance music, sampling and the techno era. As well as profiling the sonic futurists who pioneered new styles, it documents the scenes and underground movements that built a thrillingly diverse electronic music culture in its formative decades.

Based on interviews with key players and a wealth of in-depth research, Dream Machines explores genres as diverse as space rock, electro-pop, ambient, dub, industrial music, prog, electro, hip-hop, hi-NRG and house, highlighting how developments in electronic music were shaped by changes in society as well as technological advances.