Moondog, the American composer, musician, poet and mystic Louis Thomas Hardin, has been interpreted and praised by artists as Janis Joplin, Antony and the Johnsons, Julie Andrews, Duke Ellington, Charlie Parker and Phillip Glass. During the 1980's he often visited Sweden. In 1981 he made recordings in Stockholm of a number of vocal canons. Now, 100 years after his birth and 20 years after his death