He won Tonys for his orchestrations and Grammys for his compositions and arrangements. But he was best known for his genre-straddling work at CTI Records.
As a teenager, he joined forces with George Clinton. Their vocal group, the Parliaments, morphed into Parliament-Funkadelic, one of the wildest acts of the 1970s.
The last surviving original member of the classic Southern rock group, he played the soaring slide guitar solo on “Free Bird” and co-wrote “Sweet Home…