Jarl Hansen, a cellist in the Royal Danish Opera Orchestra, established Jargar in the 1950s. He developed a steel core string with a more powerful and brilliant tone than traditional gut core strings. Jargar strings have been hand-made in Copenhagen ever since. The A, D and G strings are wound with thin threads of aluminium, copper and alloys. With a special, flexible steel core, Jargar violin strings produce a big, powerful, distinct and well-balanced tone. The light gauge is referred to as 'dolce' by the manufacturer, the heavy gauge as 'forte'.