My grandmother Wendy Ritson, who has died aged 90, was a classically trained violinist. She became a member of the prog rock band Centipede under her married name, Wendy Treacher.
Founded by the jazz pianist Keith Tippett in 1970, Centipede was made up of about 50 musicians who came together to record a double album, Septober Energy, in 1971. A sprawling creation, the LP consisted of four movements each lasting 20 minutes, with Wendy playing Bartók very fast backwards on the freestyle string section at the end of the third track.