This track appears solely on a 1998 compilation album of various Warp artists, titled "We Are Reasonable People." It is the second track from said album.
This track features a sample, also used in "On A Rolling Sea", which was formerly thought to have been a crowd of people saying "Wow!". Twoism user WaitingFor_22 discovered that it is, in fact, a sample from a Sesame Street episode where a group of kids, along with Big Bird, Snuffleupagus and the Word Fairy, say "Fly!"[1]