Their second album "Free" came out in April 2006. By then, the group has teamed up with World Sound Management from the USA. The American management firm became interested in Treble when the group performed in France during Midem. In true Treble style, the girls weren't invited. They went to France and just hit the streets of Cannes without any planned gigs. The album is recorded in Hawaii and Los Angeles, under the guidance of Keith Olsen. His involvement lead to a much more coherent sound and the inclusion of the Fleetwood Mac song Crystal, which also was produced by Keith Olson in its original form. The band returns to familiar water when they went on a theatre tour (Omne trivium perfectum) and a full festival agenda. Treble will compete in the National Song Festival, which is the national final for the Eurovision Song Contest.