Police drummer Stewart Copeland used a Roland RE-201 Space Echo unit on this track, which allowed him to create another track of delay that accentuates the moon theme. He did it live, triggering the unit with a foot pedal and listening to the delay as he played. He got the idea from reggae dub music an echo.
"Each repeat is not a repeat of the immediate note preceding it, it's a repeat of the note before that, which gives it this interesting kind of wobbling rhythmic effect," he explained in a Songfacts interview
. "I was doing that on the drums, and Andy was doing that on the guitar, and we figured that out. Years later, everybody's doing it - check in with U2 and part of their sound is that delay line effect."
The Space Echo units were some of the goodies they bought at Manny's Music in New York City when the money came in from their first hit, "Roxanne