1. Jincheng Hotel: located in the Financial Street area, this hotel serves authentic Italian cuisine and has a bar serving wine and coffee. There is piano music in the evenings.

2. Ruoshuixuan: This restaurant is located in the Chaoyang District and has a good reputation for good food and great views. It serves authentic Hunan and Sichuan cuisine and has a full-time piano player.

3. Himalaya Restaurant: This restaurant is located in the Chaoyang District and serves local Indian and Nepalese dishes with a piano and singers for Indian songs.

4. Red Brick Kitchen: Located in the Chaoyang District, this restaurant serves authentic Hunan cuisine, has a piano, and often has live music in the evenings.

5. Maurice: Located in Dongcheng District, this French restaurant serves authentic French cuisine and has a piano and performers playing classical music.

The above are some of the restaurants with pianos, if you are interested in other options, you can look them up on search engines or dining platforms such as Meituan.