The group Treble was formed in 1995 by Caroline Hoffman (30) and sisters Niña (20) and Djem van Dijk (18). The sisters had met Caroline that year at a concert in the far south of the Netherlands, where the three of them still live.

Caroline has been involved in music from an early age. She was four years old when she first played the piano and not much older when she joined the local choir. She has been writing lyrics since she was a child, instead of mastering a foreign language. To accompany her singing, she played the piano, but also learned to play the guitar and djembé as well. Niña and Djem's parents were so enthusiastic about the trio's musical and personal collaboration that they asked Caroline to teach both sisters music. This formed the basis of Treble. A close-knit group was born, starting with performances on street concerts where they sang and played the acoustic guitar and djembé. Their harmonised and contagious African rhythm soon attracted a lot of attention. But what makes Treble so special is their own very special Treble language in which they sing. As they put it: "In order to get emotions across, music does not always require an understandable language."

With the Treble language as their brand, the trio perform not only in the Netherlands, but abroad as well. In 2002, accompanied by their djembés and guitar, they travelled to Italy and Greece, mostly playing on the streets so that other cultures could appreciate their music as well. Within a few years, thanks to their musical wanderings, Treble has managed to win over many music lovers. This did not go unnoticed by major record labels and in 2003 CNR Entertainment signed Treble, where they remain to this day. At the end of 2003 the girls recorded their debut single 'Ramaganana', which turned out to be the major breakthrough for them. After a number of weeks in which the trio entertained the public, bringing their catchy music to Dutch shopping centres, as well as television shows, 'Ramaganana' reached the number one slot in the Dutch charts.

From a musical point of view, one can hear that the singers have continued to develop since their first CD. The title 'Free' coincides perfectly with the Treble theme: the freedom to fulfil dreams. On 'Free' the girls fill the air with a sound that unmistakably shows that they are ready to spread their wings and to conquer the world.