Live music and great food… Pianos is kind of an entertainment multiplex. The bar there doesn’t just feel like the antechamber to the performance space; it could stand on its own. There are two stages: one that has free shows upstairs in a funky loungelike setting and later brings on a D.J. spinning eclectic dance music; and one in a back room on the main floor where past concerts have found groups like Andrew W. K. and Clap Your Hands Say Yeah performing. There is also a surprisingly respectable menu, serving what seems like standard bar food that has been on “Extreme Makeover: Burger and Mozzarella Sticks Edition.” So there’s the red wine burger encrusted in black pepper, and fried mozzarella served with a sauce called not “marinara” but “roasted basil tomato.”