Belbury Poly is an alias of electronic musician Jim Jupp (along with Eric Zann). Jupp's releases are on the Ghost Box Music label (which he is a co-founder of).
Belbury Poly's sound is a blend of influences, ranging from old library music and sixties-inspired psychedelic rock soundtrack to folk, public information films, and local radio. Jupp has spoken at length about trying to incorporate the mundanity of life in the seventies and eldritch elements simultaneously in his music, as well as acknowledging a debt to the author Arthur Machen. The name references a fictional institution, created by the author C.S. Lewis.