1) Rock opera 
Franz Liszt (an obsession with Franz Liszt)
[phenomenon] Lisztomania or Liszt fever was the intense fan frenzy directed toward Franz Liszt during his performances. This frenzy first occurred in Berlin in 1841 and the term was later coined by Heinrich Heine in a feuilleton he wrote on April 25, 1844, discussing the 1844 Parisian concert season. Lisztomania was characterized by intense...