 Complete the following phrase:  In 1986, Bohlen wrote the title song Midnight Lady of Tatort episode , which was performed by former Smokie singer Chris Norman and was major hit in Central Europe, topping several charts. The song appeared on Normans second solo album Some Hearts Are Diamonds, which was produced by Bohlen. In 1988, he wrote the title song of Tatort episode , Silent Water, which he performed himself as Blue System. In 1989, two songs written and produced by him were sent to the 