Which experimental composer, working with the ANS synthesiser in the 1960s–70s, created electronic works based on sunspot data and his 'mystical chord' theories inspired by Scriabin?

• A Alfred Schnittke
• B Sofia Gubaidulina
• C Edison Denisov
• D Eduard Artemiev ✓

Eduard Artemiev (1937–2022) scored many of Andrei Tarkovsky's and Nikita Mikhalkov's films and pioneered electronic music with the photoelectronic ANS synthesiser developed by Yevgeny Murzin.