Frumpy was perhaps the first or best internationally known of the German progressive bands who had their heyday was from 1970 - 72.
Shortly after Frumpy disbanded, Inga Rumpf, Jean-Jacques Kravetz and Karl-Heinz Schott recruited guitarist Frank Diez (ex-Emergency) and drummer Curt Cress to form Atlantis.
Inga Rumpf, Carsten Bohn and Jean-Jacques Kravetz reformed a more soulfull/bluesier version of Frumpy in 1990 which released a couple of CDs. These later recordings are less progressive than earlier works.