What documentary centers on the journey of blind American singer Paul Pena to the isolated Russian Republic of Tuva,  American Harmony or Genghis Blues?
American Harmony: American Harmony is a 2009 documentary film directed and produced by Aengus James, produced by Colin Miller, and edited by Kate Amend. Genghis Blues: Genghis Blues (1999) is a documentary film directed by Roko Belic.
i don't know