The Entertainer (Music CD) Listening to Jazz can actually have an effect on the type of brain waves you produce – which can be stimulating or relaxing. Jazz is a music that can shape our character by giving us courage prepare us to improvise innovate give others an equal voice and listen. Jazz represents a great amount of freedom. The spirit of the music is expression and the desire to speak freely without any filters. Music CD s Offer a Noise-Free Listening Experience Without Hiss Scratches and Crackle.