Disney World is FULL of live music. You can see Broadway-quality musicals in the park, listen to street musicians, and even a barbershop quartet.
EPCOT festivals also often have their share of concerts, including the EPCOT Food and Wine Festival Eat to the Beat Concert series. But you can also check out some popular bands in Disney World at Disney Springs, especially at House of Blues. Now, House of Blues is offering a ticket special for live music you might not be able to refuse!