"Moonmadness is an album released in March 1976 by Camel. It is the final album that featured the classic line-up (Latimer, Bardens, Ferguson, Ward) from the band. After the release of The Snow Goose in 1975, the band decided to move back into a more accessible direction by adding vocals to their music again. The album still has an overall theme, just as their previous one did, but doesn't follow a storyline since it's mostly based on the band members themselves.
As written in the CD Booklet: Overall, the tracks comprising the album were conceived as a loose concept based on the individual personalities that made up Camel; "Air Born" about Andrew Latimer, "Lunar Sea" about Andy Ward, "Chord Change" about Peter Bardens and "Another Night" about Doug Ferguson." - Wikipedia