NANNI BALESTRINI (1935-2019)     I close my eyes and start to sing threads are entangled and transformed into spots whose dance moves ever more slowly I sang my repertoire then I started monologues with my eyes closed I walked back and forth in the cell four steps forward four steps back I invented dialogues for two characters that spoke different languages like at the cinema when the film ends there are those who make love who smoke there are those who merely exist   Nanni Balestrini, the radical Italian experimental visual artist, poet, and novelist known for recombinatory, revolutionary…