Claim: Jon Georg Balke was active in a percussion group and in the Afrofusion group E'olén before joining Oslo 13 and Masqualero then he focused on his own projects, such as JøKleBa (with Audun Kleive and Per Jørgensen) and the Magnetic North Orchestra.
Evidence: Jon Georg Balke (born 7 June 1955) is a Norwegian jazz pianist who leads the Magnetic North Orchestra. Magnetic North Orchestra He was active in the groups of Radka Toneff and in the Afrofusion group E'olén before joining Oslo 13 and Masqualero in the early 1980s. From 1989 he focused on his own projects, such as JøKleBa (with Audun Kleive and Per Jørgensen) and the Magnetic North Orchestra for which he composed the commissioned work Il Cenoneat to Vossajazz 1992.