Short answers, pulled from the story.
Bo Hansson spent his early years in a village surrounded by pine forests in Jämtland, northern Sweden. His family moved to Stockholm when he was young, leaving him behind with friends of the family before he joined them as a teenager.
Sagan Om Ringen was released on Silence Records in autumn 1970 and became a huge hit. Copies reached Britain where Tony Stratton Smith released it as Music Inspired by Lord of the Rings on Charisma Records in September 1972.
Hansson began recording music inspired by Richard Adams' novel Watership Down at Studio Decibel which resulted in the album El Ahrairah issued in September 1977. The album appeared as Music Inspired by Watership Down on Charisma in the UK and Canada and on Sire Records in the US.
Bo Hansson acquired a Hammond organ with help from Bill Öhrström who worked as a producer at Polydor Sweden. Janne Carlsson joined him as a drummer and they formed Hansson & Karlsson to release three albums between 1967 and 1969.
Bo Hansson died in Stockholm on the 23rd of April 2010 after years of relative silence from the music world. His legacy grew among independent musicians who recognized his pioneering contributions to progressive rock.