During the early part of the 1970s, he starred as clarinet soloist in the Jeunesses Musicales World Orchestra, led by the conductor Leonard Bernstein.

In the Stockholm area, he was later in the Gugge Hedrenius Band, Uppsala Chamber Soloists and Frösunda Wind Quintet in 1979 before he became a member of Egil "Bop" Johansen's Jazz Incorporated.

Andersson is involved in a large number of jazz projects in the Nordic countries and in Tanglewood, Massachusetts.

He is regarded as a brilliant improviser and plays with a modern neo-bop style and is still a sought after classic soloist.

[5][6] With Jazz Incorporated With Thorgeir Stubø With Esko Rosnell Quartet With Bernt Rosengren's Summit Meeting With The Ulf Sandberg Quartet With Bosse Broberg With Georg Riedel With DUOJ (Cecilia Jonshult - vocals and Lars Jonshult - bass)