Fifth-century Athenian musical and political theorist Damon was the first to study music's psychological, behavioural, and political effects, profoundly influencing debates on music theory throughout antiquity. Considered by Isokrates to be the most intelligent Athenian of his age, Damon worked alongside Perikles during the most vibrant decades of Athens' democracy. Probably using fourth-century BC sources, Olympiodoros records that 'Damon taught Perikles the songs through which Perikles harmonized the city'. However, musical and political entanglements caused this teacher-theorist to be...