Chaos simulation and audio output

In the paper we present the sound output of analogue signal from the Chua's circuit. We are not interested only in the classic displaying of graphically interesting attractors in the plane, but we are also interested in the sound of them. Changes in Chua's circuit parameters result in a variety of periodic and chaotic attractors that can also be used in music or cryptography. MIDI keys have been used so that a signal with the appropriate tone frequency is generated for each key. The result of using various output signals of the Chua's circuit is presented through the internationally known Slovak folk song "The furnace fell down". Also, we point out the possibilities of using chaos in rehabilitation in hearing testing.