Jan Fredrik Christiansen was born 1942 in Lebesby, Norway, and studied with Harry Kvebæk, William J. Overton (BBC Symphony Orchestra) and Adolph Herseth (Chicago Symphony Orchestra). He was appointed to a position in the Oslo Philharmonic Orchestra in 1966 and was principal trumpeter from 1973 to 2007. Christiansen has performed under many conductors including Leopold Stokowski, Witold Lutoslawski, Zubin Mehta, Paul Kletski, Kirill Kondrasjin, Herbert Blomstedt and Andre Previn. Most important to him nonetheless were the twenty-three years under Mariss Jansons as principal conductor.

Terje Winge (b.1950) made his début recital in 1970. His repertoire ranges from early baroque to music of the present day. A particular area of interest for him lies in French romantic music and the modern French school, including the majority of Olivier Messiaen's large scale organ works.