Tyndall is the musical duo consisting of Jürgen Krehan and Rudolf Langer, who established themselves in the experimental music scene of Germany in the late 1970s and early 1980s. Their music is characterized by the use of analog synthesizers and tape manipulations, layered with electronic rhythms and sound effects. They released several albums during their career, including "Entertainment" and "Reflexionen", which gained them a cult following and influenced later generations of electronic and ambient musicians.