challenge: What was the original content of the third disc on the Japanese release of Live in Vienna?
  
  A. A collection of newly sequenced pieces with excerpts from Robert Fripp's soundscapes
  B. Two encores from the show in Vienna
  C. A recording of one of the band's first performances of 'Fracture' since 1974
  D. Live tracks from King Crimson's 2015 tour of Japan
  Answer: 