Original sentence: Heartland rock was an American Midwest and Rust Belt counterpart to Southern rock in the American South (Lynyrd Skynyrd, Marshall Tucker Band), Charles David Sharp), and to country rock on the American West Coast (The Eagles, Firefall, Poco)
Edited sentence: Heartland rock was an American Midwest and Rust Belt counterpart to Southern rock in the American South (Lynyrd Skynyrd, Marshall Tucker Band), and to country rock on the American West Coast (The Eagles, Firefall, Poco)