lyrics were based on graffiti daubed on walls during the riots. A soundtrack album of music that Vangelis performed for a 1970 wildlife documentary series by Frédéric Rossif was released as L'Apocalypse des animaux (1973). Vangelis also provided music for the Henry Chapier film Amore (1973). In 1973, Vangelis released his second solo album Earth, a percussive-orientated album with various additional musicians, including Robert Fitoussi and Aphrodite's Child bandmate Silver Koulouris. The line-up performed and released a single titled "Who" in 1974 under the name Odyssey, including a concert that Vangelis held at the Paris Olympia in February 1974. Several months later Vangelis travelled to England to audition with the progressive rock band Yes, after singer Jon Anderson had become a fan of his music and invited Vangelis to replace departing keyboardist Rick Wakeman. After problems with obtaining a work visa and the Musician's Union, and his reluctance to travel and tour, Vangelis declined. The band hired Patrick Moraz, who used Vangelis's keyboards in his audition. In 1974, Vangelis left Paris for London as he "outgrew France". 1975–1980: Move to London, solo breakthrough, and Jon and Vangelis In August 1975, after Vangelis had settled in a flat in Marble Arch, London, where he set up his new 16-track studio, Nemo Studios, which Vangelis named his "laboratory", he secured a recording deal with RCA Records. He would release a series of electronic albums for RCA until 1979. The first of these, Heaven and Hell, features the English Chamber Choir and Yes singer Jon Anderson. Released in December 1975, Vangelis supported it with a sold-out concert at the Royal Albert Hall in 1976. Heaven and Hell was followed by Albedo 0.39 (1976), Spiral (1977), Beaubourg (1978), and China (1979), each having their own thematic inspiration including astronomy/physical cosmology, Tao philosophy, the Centre Georges Pompidou, and Chinese culture, respectively. During the same period, Vangelis composed the score for Do You Hear the Dogs Barking? directed by François Reichenbach. This was released in 1975 under the French title Entends-tu les chiens aboyer? and re-released two years later as Ignacio. In 1976, Vangelis released his second soundtrack for a Rossif animal documentary, La Fête sauvage, which combined African rhythms with Western music. This was followed in 1979 by a third soundtrack for Rossif, Opéra sauvage. Almost as well known as L'Apocalypse des animaux, this soundtrack brought him to the attention of some of the world's