When an infection attacked the brain of a 68-year-old concert cellist and wiped out his entire memory back in 2005, doctors were shocked to discover his musical memory remained intact.First reported by The Guardian, the German musician known as PM could only recognize his brother and care worker, but had no recollection of people or events from his past.Discover Magazine explains the cellist's severe amnesia meant he couldn't recall old and new memories thanks to the destruction of his medial temple nodes -- a part of the brain responsible for storing facts and events.