Wallin was born in
Linköping. Between 1953 and 1965, he worked in the ensembles of
Arne Domnérus and
Lars Gullin, as well as the
Radiobandet with
Harry Arnold. He performed with
Lill Lindfors and Svante Thuresson. During this time he also participated in
Benny Golson's sessions with Scandinavian musicians. His arrangements of Swedish folklore, which were initially recorded under the title
Old Folklore in Swedish Modern 1962 with a big band, featured soloists such as Domnérus,
Idrees Sulieman,
Sahib Shihab and
Georg Riedel and strings. He returned to this musical area in 1997 with the
JazzBaltica ensemble (including
Tomasz Stańko,
Nils Landgren,
Bugge Wesseltoft and Wolfgang Schlüter). From 1972 to 1993, he worked as a lecturer at the
Royal College of Music, Stockholm. == Awards and honors ==