Nashville is the “music city.”
From Wikipedia: Magic City is a nickname of several cities, usually commemorating a remarkable growth in size over a short time. The cities include:
Barberton, Ohio
Billings, Montana
Birmingham, Alabama
Bogalusa, Louisiana
Cheyenne, Wyoming
Chicago, Illinois
Endicott, New York
Leadville, Colorado
Miami, Florida
Millinocket, Maine
Minot, North Dakota
Moberly, Missouri
Roanoke, Virginia