Here is what I found on the Dis for this restaurant, hope it helps...
1900 Park Fare
At 1900 Park Fare, 15 feet above the floor, you'll find Big Bertha. This Parisian-built band organ is almost a century old. It will periodically spring to life for your listening pleasure, with pipes, drums, bells, cymbals and a xylophone, lending a festive air to the Character meals offered here. Breakfast features an all-you-can-eat buffet, with fresh fruit, bagels, oatmeal, yogurt, eggs, bacon, sausage, cheese blintzes, omelets, fried potatoes, cold cereals, biscuits and gravy, French toast, waffles, pancakes and baked goods. Entertaining and mingling with the guests are Mary Poppins, Mad Hatter, Alice in Wonderland, Pinocchio and Gepetto. Priority Seating is recommended. From 5:15 p.m. until 9 p.m., the Character dinner buffet is offered with unique salads, soups, spoon bread, vegetable dishes, seafood, chicken, prime rib and children's favorites. The dinner hosts are Disney's favorite Princess, Cinderella, and her Prince Charming. Any of the following characters may also be found (subject to availability): Fairy Godmother, Suzy Mouse, Perla Mouse, Lady Tremaine (Cinderellas stepmother) and her 2 stepsisters Anastasia and Drizella.