Back in 1974 when this record was released for the first time, no 24 multitrack machines did exist. With the money Edgar earned with Tangerine Dream, he bought himself a couple of Revox ¼ inch tape machines to record this music under very adventurous circumstances. Edgar said during his first press conference as a solo artist, it might have been the first ´bed and bathroom´ recording ever done. The water you can hear is the water tube in his apartment. The airplane had been recorded with a so-called artificial head system hanging out of the apartments window when planes were approaching the Berlin airport. Today it is a classic within the field of chilly ambient music.