Complex sentence: At the age of 14, he was playing in bands around Jackson, finding more inspiration in the 78s of Big Maceo Merriweather, who took the young pianist under his wing once Spann migrated to Chicago in 1946.
Split into simpler sentences: At the age of 14, he was playing in bands around Jackson, finding more inspiration in the 78s of Big Maceo Merriweather. It was Merriweather who took the young pianist under his wing once Spann migrated to Chicago in 1946.