Lars Danielsson is one of the top jazz bass players in Sweden. His deeply melodic playing has provided depth to the music of an international cast of jazz players including vocalist Caecilie Norby, saxophonist Rick Margitza, guitarist John Abercrombie, trumpet player Kenny Wheeler and percussionist Trilok Gurtu. He recorded with Lars Jansson's Trio 84 and the Eternal Now and the Lars Jansson Trio. A member of Hans Ulrick's Jazzpar 99 Combo, which featured guitarist John Scofield and drummer Peter Ekskine, Danielsson subsequently performed, along with saxophone/clarinet player Tony Coe, in Carsten Dahl's Jazzpar 2000 Combo.
Danielsson has garnered considerable acclaim as a bandleader. His 1994 album, Far North, featured accompaniment by soprano saxophonist David Leibman, pianist Bobo Stenson and drummer Jo Christensen, while his 1997 album, Origo, was recorded with guitarist John Abrecrombie and drummer Adam Nussbaum.