Geir Jenssen, born 30â¯Mayâ¯1962 in Tromsø, Norway, is a Norwegian electronic musician and producer best known for his ambient work under the moniker Biosphere. After acquiring his first synthesizer in 1983, Jenssen released the cassetteâonly EâMan in 1984 and later joined the synth trio Belâ¯Canto, contributing to WhiteâOutâ¯Conditions and Birdsâ¯ofâ¯Passage before departing in 1990 to pursue a solo career. His debut as Biosphere came with the single "The Fairy Tale" and the album Microgravity, issued by Origoâ¯Sound in 1991 and later reissued by R&S Records in 1992. The 1994 release Patashnik expanded his audience and featured the track "Novelty Waves", which entered the UK singles chart at Numberâ¯51. In 1997, the album Substrata was released on Allâ¯Saints Records. Subsequent albums include Cirque, Shenzhou, Autourâ¯deâ¯laâ¯Lune, and Dropsonde, while collaborations with Peteâ¯Namlook (Firesâ¯ofâ¯Ork) and various film scores (e.g., Insomnia) broadened his portfolio. Jenssen has performed at European festivals and released live recordings such as Wireless: Live at the Arnolfini, Bristol. His work has continued to influence the ambient genre, with recent releases like Shortwaveâ¯Memories, Substrata (Alternative Versions), and The Wayâ¯Ofâ¯Time (2025).
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