 Zimmerman moved to Minneapolis in September 1959 and enrolled at the University of Minnesota . His focus on rock and roll gave way to American folk music . In 1985 , he said : 
 Zimmerman moved to Minneapolis in September 1959 and enrolled at the University of Minnesota . His focus on rock and roll gave way to American folk music . In 1985 , he said : 
Zimmerman moved to Minneapolis in September 1959 and enrolled at da University of Minnesota . His focus on rock and roll gave way to American folk music . In 1985 , he said :