this is taken from the Age, 3 September 2010:
"Julia spent her time in exile living in New York, slowly recording a solo album. Then, one day, she received a call from her mother. Her grandfather had passed away. Angus and Julia decided to play a song at the funeral: Old Friend. Angus wrote it four years earlier when he discovered his grandfather had Alzheimer's. After the funeral, they returned to the US together and recorded Old Friend (included as a 'secret' track on Down the Way)."