Swedish violinist Jerker Hans-Ers is a folk musician sprung from the traditional folk music in Hälsingland, Sweden. He was five years old when he began playing the violin through the Suzuki method and at the age of 13 he received an old hardanger fiddle that led him into Norwegian folk music. He realized pretty early that it was the Norwegian tonality, and not the Norwegian tunes that captured his interest. Since that moment he has experimented a lot with his sound on the fiddle and has become an important musician and composer among his generation of folk musicians.

Growing up Jerker learned from older fiddlers and has specialized in the traditional music from his home region, Hälsingland. With inspirations such as Jonas Olsson he got into composing music at an early age and started to arrange music as well as playing in different bands in his teenage years. With a great curiosity and the urge to learn new skills on his instrument he has developed his own sound mixing different techniques with his traditional roots to find new dimensions of Nordic folk music.