Tempo is to music as nudity is to sex, or as the weather is to the news. The mean speed is derived from √1 minute*10^-1 or the square root of three fifths of one second, √3/5" – the Universal Speed of Indecison. What's in it for *you*? If we control our mental speed, we control our mood. Emotion is simply a predictable frequency.
Duke is such a "Jew" hater let there be no doubt: 1) Judsaism is an abstraction; 2) Duke's behavior indicates he is an atheist anarchist. Nothing more.