At Xueze Road Station of Nanjing Metro Line 2

The subway stairs that can "play" beautiful music have been upgraded and reopened to the public. There are more than 50 steps in this staircase. The appearance is packaged like a huge piano keyboard. One of the 18 steps is equipped with a sensing device. When someone passes by, a corresponding piano sound will be emitted. The reporter saw at the scene that the musical staircase was much more "outstanding" than before. The first is a very artistic black and white keyboard, and in the corners of the "white keys" there are also red note patterns.