When it comes to German progressive hard rock based on the Deep Purple formula, none were better than Birth Control! The music was grounded in jazz-rock with rock influences. After some years they had found their own, heavy guitar and organ based sound. In 1983, founder member Bruno Frenzel died after a long illness. "Bang" was released the same year and was another disappointment. This was something of a curiosity, released on the short-lived, re-launched Ohr label. This had the same logo as the original series, but with the text "Ohr Today". Birth Control soldiered on for some years without Frenzel, but disbanded in the mid-eighties.