"Alexander Bell made a pact with his remaining brother: if a second one of them should die, the survivor would try to invent a device capable of receiving transmissions from beyond the grave. Then the second brother did die; and Alexander, of course, invented the telephone. He remained a sceptic and a rationalist throughout his life, but only because his brothers never called."

A séance conducted by gramophone and electricity with Louis Armstrong, Clarence Williams and Tom Waits.