Avvenu is one of the biggest surprises of the Slovenian music nowadays. The main source of inspiration Avvenu lies in the fantasy world. Avvenu seek their means of expression in the folk music of many cultures, creating a mosaic of emotions while remaining themselves, drawing on folk heritage. In 2006, surprised the scene with his first studio album Panta Rhei. After a long pause, the band recorded a second album Kastalija that it highlighted in new, unseen heights. Fantasy world, reflected in their lyrics and music is best experienced live concerts, which are visual experience.