Analogue Bubblebath 4 was the fourth EP released by Richard D. James, under the alias AFX. It is also the fourth release in the Analogue Bubblebath series. The EP consists of four tracks (plus one hidden track on CD releases). It was released in 1994 on Rephlex Records in both CD and 12" vinyl formats.All tracks are untitled. However, many AFX fans have titled the songs after animals whose noises are thought to be heard on each track - Elephant Song, Cuckoo, Gibbon, and Sloth, in order.