Complex sentence: After he graduated from high school in Natchez, he enrolled at Alcorn State University, and then relocated to Minneapolis at the age of 20 where he performed with several bands including "The Mystics" and Wynd Chymes.
Split into simpler sentences: After he graduated from high school in Natchez, he enrolled at Alcorn State University. At age 20 he relocated to Minneapolis, where he performed with several bands including "The Mystics" and Wynd Chymes.