For Theatre of the World, his fifth full-length opera, Louis Andriessen (1939) drew inspiration from the Jesuit scholar Athanasius Kircher (1601-1680). He was the last Renaissance man, someone who could do everything and knew everything. Kircher wrote books full of the most diverse subjects, from the meaning of hieroglyphics to vulcanology and musical instruments. He even designed a cat piano, based on the idea that each cat screams at a different pitch when you tap its tail. After his death, Kircher fell into disrepute as a charlatan.
However, unusable for science, he forms gefundenes Fressen for a composer like Andriessen, who likes to explore the boundaries between reality and fiction. His opera Writing to Vermeer (1999) is based on fictional letters to the Delft painter; Rosa, a Horse Drama (1994) is about the murder of a composer, allegedly part of a conspiracy against music.