Boardwalk area:
Jellyrolls - dueling piano bar
Atlantic Dance Hall
ESPN Club - watch sports on the big screens
DTD area:
Raglan Road - nightly band/singing/dancing onstage while you eat or take a seat in the bar area
HoB - usually have at least one concert per week plus the weekly Sunday Gospel Brunch(not late night)
Bongos Cuban Café - listen to a band play at night during dinners
PO/RS:
Hee Haw Bob - piano player in a bar usually 5 nights per week
Offsite:
US/CityWalk - multiple clubs with different music at each
Downtown Orlando - multiple bar locations