Ralph Lundsten is a swedish composer born in 1936. He started making electronic music in the 60's and his works from this period are quite avantgarde and experimental, influences can be heard from Karlheinz Stockhausen among others. In the 70's his music became much more accesible and more towards new age and pop. Lundstens most well-known works is the series "Nordisk Natursymfoni" ("Nordic Nature Symphony" in english).
Lundstens discography is very extensive, about 40 albums has been put out since the 60's, and he is still making music today.
His website can be found at http://www.andromeda.se .