Beethoven recomposed
Mahler’s 10th symphony and Debussy’s String Quartet in G are amongst works that have been not just been discovered posthumously, but which have been re-constructed into a work that can be performed. Barry Cooper, a Professor of Music at Manchester has filled in the missing pieces from Beethoven’s 2nd String Quartet….
http://www.theaustralian.com.au/news/arts/beethoven-piece-lives-again/story-fn9d2mxu-1226149500110