The 'A' of Bart' is a reference to the AREA of Bart, which is a region in the United States located in the state of Georgia. It is known for its rich history and culture, as well as its diverse population. The AREA is home to many different ethnicities, including African Americans, Hispanics, and Native Americans. It is also home to a number of universities, including Georgia State University and Georgia Institute of Technology. The AREA is known for its vibrant music scene, with many popular artists having come from the AREA.