After seeking advice from Father Willis and others, Arthur Denny made improvements to his 'Calliope' which had appeared at the Crystal Palace, the result being his 'Aerophone'. This had a compass of thirty-four notes, the pipes being of brass and operated by steam instead of air. It was installed in the Cromorne Gardens, an establishment run by one S.B. Simpson. It was, we are told, 'capable of producing the highest swell or the lowest symphony' and 'while its loud, sonorous tones may be heard from Hungerford Bridge, they can be so modulated and governed as to be made agreeably sweet, and but moderately audible at a distance of one hundred yards'. Of its success at its task of accompanying dancing, of its affect on the general public, of its later history or fate, and even of the date of its operation, no information accompanies the illustration, whose origin is obscure.