Moondog, who died in 1999, was a blind composer and musician, cosmologist and poet, who lived on the streets of New York. He made his own clothes and invented many of his own instruments.
The music he developed influenced a generation of artists including minimalist composer Philip Glass, jazz saxophonist Charlie Parker and later devotees including Elvis Costello.
This weekend a recital is being held in London to celebrate his music. Paul Jordan (playing the organ) and Stefan Lakatos (playing the trimba percussion invented by Moondog) perform and discuss Moondog's music.