Throughout the album, musique concrète sounds, such as amplified wristwatches, reversed piano and televised opera, weave in and out of the mix. Producer Nick Launay recalls: "On 'Four Enclosed Walls', for instance, we placed Martin's Mickey Mouse pocket watch on a floor tom, so it would resonate and have more tone. Then I added two harmonizers with a fifteen-second delay fed back on themselves, one panned left, one right. I recorded about seven minutes of it ticking away." "We also had an AMS digital sampler, one of the first digital devices ever available. One day Martin played a drum groove and I pushed 'Loop Lock' and tried to make a perfect loop. The AMS was so primitive you couldn't actually edit it to get it in time, so I randomly kept locking in different beats as he played them, till I got one that sounded cool. That loop became the song 'Track 8'. It's actually out of time, but somehow it grooves."