The band's music showed an eclectic mix of pop, psychedelic rock, folk, jazz, and classical influences.
When the group formed in their native Bournemouth area, the Giles brothers sought a singing keyboard player through a newspaper advertisement.
In autumn 1968 the group added Ian McDonald on saxophone, flute and clarinet, and former Fairport Convention vocalist Judy Dyble.
One of the melodies from "Passages of Time" was later re-used for "Peace – An End" on the second King Crimson album, In the Wake of Poseidon.
Michael Giles, Robert Fripp and Ian McDonald went on to form the first line-up of King Crimson, rounded out by bassist/vocalist Greg Lake and lyricist Peter Sinfield.