Vinegar is a psychedelic rock band from Germany formed by Wolfgang Grahn, Bernhard Liesegang and Jochen Biemann. The three men attended school together, but it wasn't until they were in the university that the idea of forming a band had becomed more concrete. After some time playing together, they added a new member, Dagmar Dormagen (who was a very close friend of Wolfgang and lived just around the corner from his house) to sing in the band. By the end of 1969 Rolf Zwirner and Ralf Modrow joined the group and the line-up was established. They named their band VINEGAR because they wanted to make music that was "hard to digest" as opposed to the "sweet stuff" others played. The band split after the recording of their first album because of musical differences.VINEGAR made one recording only in 1971. Their sound ranges from rocking guitar riffs to soft violin passages and haunting organ passages as well. There are songs that also consist of jams, but the overall sound is more structured. In some parts of their songs they can be compared to AMON DÜÜL II or PINK FLOYD.