News Genetics DNA from Beethoven’s hair hints at what killed the composer He had a heightened genetic risk for liver disease and, possibly, a hepatitis B infection Scientists used five locks of hair collected during Beethoven’s lifetime to reconstruct the composer’s genome. The Moscheles lock (seen here) was taken from Beethoven around the time he died in 1827. Ira F. Brilliant Center for Beethoven Studies/San Jose State Univ. Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Freda Kreier March 22, 2023 at 11:00 am DNA from strands of Beethoven’s hair is helping to uncover what may have caused his death, researchers say.