Kwella has worked as a professional guitarist since 1986 and has extensive experience in virtually all genres of jazz, from traditional jazz to experimental and electronic jazz. He is and has been a performing guitarist, composer and arranger in his own groups and has simultaneously worked as a guitarist with a large number of Danish and foreign bands and soloists. In total, Kwella plays approx. 100-130 concerts a year both in Denmark and abroad. In recent years, Kwella has composed for and played regularly with the groups GuitarRama Jazzical, Paraphrasing feat. Thomas Fryland, Kwella/Bjørnskov, Et letsindigt ord, Etnolab, Hede Hule Hot, as well as a number of other constellations. In addition, he has also performed with Randy Brecker (US), Marc Johnson (US), Eliane Elias (BR), Aarhus Jazz Orchestra, Palle Mikkelborg, Aalborg Symphony Orchestra, Sønderjyllands Symphony Orchestra, Ginne Marker, Karmen Roivasepp, Uffe Steen, Jesper Løvdal, John Stowell (US), Ulf Bandgren (S), Gimo Mendes (MZ), Blood Sweat Drum and Bass Big Band, Gregory Boyd (USA), Mageshen Naido (SA). Besides his career as a performing guitarist he works as an assoc. professor in jazz guitar and ensemble at The Royal Academy Of Music in Aarhus/Aalborg, Denmark. He has also been a guest teacher at conservatories in Italy, South Africa, Norway and Sweden.