The danish duo Erik Clausen and Leif Sylvester Petersen, performing in music as Clausen & Petersen has collaborated in theater, film and music from the late 60's. As a musical duo Clausen & Petersen released a handful of records from late 70's to early 80's. Some were soundtracks from their filmwork or theatrical work. All in the duo's favorite style reworking the nearly forgotten sound of streetsinging, novelty songs and 50's schlager hit-radio.