Coldplay has also cited various other influences in the album. The German electronic music pioneer Kraftwerk is evident on the song "Talk", which borrows its synthesizer hook from 1981's "Computer Love", with the riff instead being created by electric guitar. As mentioned before, also present is large electronic musical influences, from some of the likes of English musicians David Bowie and Brian Eno. Eno, who would later produce Viva la Vida or Death and All His Friends and Mylo Xyloto, also played backing synthesizer on the tracks "Low" and "White Shadows" The first single, "Speed of Sound", also takes inspiration from the drumbeat of English singer-songwriter Kate Bush's song "Running Up that Hill". According to Jon Pareles of The New York Times, who wrote a controversial article extensively criticizing the album, the band attempts to "carry the beauty of 'Clocks'" across the album, borrowing some of its features to songs like "Speed of Sound". The opening track "Square One" also features the famous motif from Also sprach Zarathustra, known better as the title theme of Stanley Kubrick's 1968 science-fiction film 2001: A Space Odyssey. The three-note sequence is replicated in the song by distorted guitar riffs, with a backing synthesizer added for musical texture. The sequence also transitions as a part of the song's chorus, showcasing Chris Martin's trademark falsetto voice.