Spiral is a studio album by the Greek electronic composer Vangelis, released in December 1977. It was the third album produced by Vangelis in Nemo Studios, London, which was his creative base until the late 1980s. For the track "To the Unknown Man" Vangelis received the Midem International Instrumental award in 1978.

Heaven and Hell is a studio album by Greek electronic composer Vangelis, released in November 1975 on RCA Records. It is the first album recorded at his Nemo Studios in London that he used until 1987. It is a concept album based on duality.
The album marks Vangelis' departure from the progressive rock sound on his previous album Earth (1973), with adoption of a more classical synthesized sound, as well his UK chart debut.

Beaubourg is a studio album by the Greek electronic composer Vangelis, released in July 1978. It was the fourth album produced by Vangelis in Nemo Studios, London, and his final album for RCA Records. It is an avant-garde-experimental album.

Albedo 0.39 is a studio album by the Greek electronic composer Vangelis, released in 1976. It was the second album produced by Vangelis in Nemo Studios, London, which was his creative base until the late 1980s. It contrasts with his previous album, Heaven and Hell, which was classically inspired and choral, while Albedo 0.39 has blues and jazz overtones. It was his first Top 20 UK album.