Dragonetti devoted his life to the double bass. His career in England (1794-1846) is one of the most remarkable success stories in the annals of musical history. His unprecedented virtuosity elevated the double bass to a new status. In combination with his charismatic personality his musical talent dominated the English cultural world for more than fifty years. As performer, composer, collector, and friend, he exposed the unforeseen potential of the double bass. His formidable talent as a musician and businessman provides an unusual insight into nineteenth-century entrepreneurship. This first substantial biography and assessment of Dragonetti's career allows us to understand his importance in the history of music in general and of double-bass performance in particular.