Greenwood first heard Olivier Messiaen's Turangalîla Symphony at the age of 15 and became "round-the-bend-obsessed with it". Messiaen was Greenwood's "first connection" to classical music, and remains an influence; he said: "He was still alive when I was 15, and for whatever reason I felt I could equate him with my other favourite bands – there was no big posthumous reputation to put me off. So I'm still very fond of writing things in the same modes of limited transposition that he used."