Modulations traces the evolution of electronic music, in all of its broad range of genres and styles, as one of the deepest artistic expressions of the 20th century. Taking in vanguard composers like John Cage and Giorgio Moroder, Kraftwerk’s proto-techno, the electro-funk of Afrika Bambaataa and techno legends Carl Cox, Derrick May and Juan Atkins, this essential documentary celebrates and contextualises a moment in history when humans and machines came together to create a new sound.