South African-born Robert Calvert’s time in Hawkwind had, up until this point, been tentative; his documented mental instabilities kept him from having a permanent position with the band. Following his departure after the Space Ritual tour, Calvert teamed up with producer Roy Thomas Baker for his first solo album. The first, Captain Lockheed And The Starfighters, presented the true story of the Lockheed F-104 Starfighter, a plane with a dubious safety record. A mix of spoken word passages and songs, the album is every bit as good as a Hawkwind release.

Fred Frith was best known for his unique approach to guitar playing as part of the equally unique Henry Cow, and later Art Bears. Frith had released a solo album in the interim, Guitar Solos (a series of improvised—you guessed it—guitar solos), and a final album with Henry Cow in 1979, Western Culture. For Gravity, Frith teamed up with two Rock In Opposition stalwarts for another look at song-form, dance music and, of course, the avant-garde.