from left: Decio Cinti (1879-1954) writer and translator and Marinetti's private secretary; Luigi Russolo (1885-1947) painter and composer, author of the manifesto 'The Art of Noises', early theorist of electronic music; Armando Mazza, poet; Filippo Tommaso Marinetti (1876-1944) ideologue, poet, editor and author of the Futurist Manifesto in 1908; Paolo Buzzi (1874-1956) playwright and poet; Umberto Boccioni (1882-1916) painter and sculptor;