Guitar Solos is the debut solo album of English guitarist, composer, and improviser Fred Frith. It was recorded while Frith was still a member of the English experimental rock group Henry Cow and was released in the United Kingdom on LP record by Caroline Records in October 1974. The album comprises eight tracks of unaccompanied and improvised music played on prepared guitars by Frith without any overdubbing.

Before and After Science is the fifth solo studio album by Brian Eno, originally released by Polydor Records in December 1977 in the United Kingdom and by Island U.S. soon after. Produced by Eno and Rhett Davies, it is the first of Eno's popular music works to be published under his full name.