On an extended journey through Italy in 1830 and 1831, Felix Mendelssohn began work on his Fourth Symphony. A wildly talented composer who wrote his famous Octet when he was only sixteen, Mendelssohn was prompted to finish the work when the London Philharmonic Society requested a symphony from him (and offered payment of a hundred guineas). Mendelssohn called it the jolliest music he had ever composed. Although he remained dissatisfied with the symphony and planned numerous revisions, the Italian Symphony still stands as one of his most easily recognizable works.