Kraftwerk - Radio-Activity

"A concept album exploring themes of broadcast communications, Radio-Activity marked Kraftwerk's return to a more obtuse territory, extensively utilizing static, oscillators, and even Cage-like moments of silence to approximate the sense of radio transmission; a pivotal record in the group's continuing development, the title track – the first they ever recorded in English – is their most fully realized electro-pop effort to date, while 'The Voice of Energy' precipitates the robot voice so crucial to their subsequent work." – All Music Guide