Complex sentence: Within three years producer Felton Jarvis had discovered him in an Atlanta High School and introduced Whitley to Atlanta music publisher Bill Lowery who saw Whitley's potential and signed him to a contract.
Split into simpler sentences: Within three years producer Felton Jarvis had discovered him in an Atlanta High School. After introduced Whitley to Atlanta music publisher Bill Lowery, who saw Whitley's potential and signed him to a contract.