janez bončina, nicknamed benč (born 3 december 1947) is a slovenian composer, guitarist and singer. he is one of the leading authors and performers of slovenian and yugoslavian rock music. in the middle of the 1960s, bončina with his friend tomaž domicelj from the group helioni, showed his talent for music. later with the group mladi levi he founded the projects, which started the slovenian pop rock scene.