Zyma, named after an east german Slavic dialectical word for winter, were a band founded in 1972 by musicians from the area around Heidelberg and Mannheim. At that time, in the initial stages, they were playing progressive hard rock. Their keyboard player was Günter Hornung (b. 02/16/1938 in Karlsruhe), a teacher, who had played in many jazz and jazz-rock bands before, among them a big band, and whose last one had been the Groovers, a soul band. Due to his many years of experience and outstanding abilities and skills, Hornung was the leader of Zyma.