Pärson Sound was one of the earliest and most radical experimental rock bands of Sweden and the nucleus of a lineup that went on to become International Harvester, Harvester, and eventually, Träd, Gräs och Stenar. With their expansive intake of styles as diverse as West Coast psychedelic music and the Velvet Underground’s minimalism while still retaining a hint of their Swedish roots, Pärson Sound created an unusual sound similar to early krautrock, though predating its beginning by a year. The group began in Stockholm in the spring of 1967 shortly after a visit to Sweden by minimalist composer Terry Riley to perform his classic “In C,” as well as a new work with Swedish school children called “Olson III.”
The band Pärson Sound was formed during the summer of 1967, then consisting of Bo Anders Persson (guitar), Thomas Tidholm (vocals, saxophone, flute), Arne Ericsson (cello), Urban Yman (violin), Torbjörn Abelli (bass) and Thomas Mera Gartz (drums). This constellation, which were playing an experimental brand of psychedelic rock never released any official records, although a collection of recordings from 1967-1968 were released as the double CD Pärson Sound (1967-68) in 2001 and as a 3 LP Deluxe box set in 2010. In August 1968 the band changed their name to International Harvester and later the same year their debut album Sov gott Rose-Marie was released. In 1969 the name was shortened to Harvester, under which the album Hemåt was released.