The request "19. Klaus" refers to of the book Stasiland by Anna Funder, which profiles Klaus Jentzsch , a famous East German rock musician known as the "bad boy of East German rock 'n' roll". Profile of Klaus Jentzsch
: Klaus was a rebellious and highly popular figure in East Germany who played music heavily influenced by Western styles like the Beatles and Led Zeppelin.
Klaus serves as a living example in Funder's report of how art and entertainment often became battlegrounds for ideological control in the GDR. His popularity with crowds of tens of thousands made him a "troublesome figure" because his success suggested the superiority of Western-style art over state-sanctioned entertainment. Stasiland Chapter 19: Klaus Summary & Analysis - LitCharts
: To the East German authorities, Klaus represented Western capitalist culture. His music and lifestyle—characterized by profanity and heavy drinking—did not conform to authoritarian socialist standards.