Quadrtata (1963) has been expertly composed by Bent Lorentzen , for String Quartet. Bent Lorentzen studied at Aarhus University and at the Royal Danish Academy of Music in Copenhagen with Finn Høffding and Vagn Holmboe, exponents of the post-Nielsen Danish tradition of the 1950s. In contrast to his Danish colleagues who became involved in the New Simplicity movement of the 1960s, Lorentzen embraced the complexity of the avant-garde, using serialism and formal systems to expressive effect, and adding live performance elements to combat the dryness of purely electronic music.