When I was at music school we had a discussion about what the essential elements of music are. Everyone agreed that not all music has melody, and plenty of music has no harmony. I thought all music had to have rhythm, but Jim Cotter said that there’s such a thing as music that is ‘pure texture’.

I asked for examples and he told me he mostly meant electroacoustic music — some of Ilhan Mimaroǧlu’s musique concrète pieces for…