A revolutionizing model of basson, with twenty-four nickel-silver keys, was developed by the bassoonist Luigi Caccavaio in Naples. Its novelty concerns all major aspects of the instrument: bore, length of the wooden sections, and the key system which incorporates elements of the Boehm system. The Caccavaio-Esposito model was too different from the mainstream bassoons to be adoptable by bassoonists.