Complex sentence: He went on to record for many other labels in the 1950s including Imperial in New Orleans, and Vee-Jay in Chicago, but further commercial success eluded him until a modest comeback in the 1970s.
Split into simpler sentences: He went on to record for many other labels in the 1950s including Imperial in New Orleans, and Vee-Jay in Chicago. However, further commercial success eluded him until a modest comeback in the 1970s.