In 1923, American composer and pianist, Henry Cowell (1897-1965) gave his first highly successful concert tour of Europe, playing his own unique compositions. This thesis details this tour and discusses its impact. Considering the enormous impact of Cowell's tour, it has only been discussed briefly. Cowell performed in many European cities, especially in Vienna, Berlin, Paris and London, achieving positive reviews and some notoriety. I discuss how and why he created such an impact, not only during the tour but also immediately following it, in relation to musical life in Europe and the differences between his piano music and the piano music that was being heard at the time
