![CGTN on Twitter: "Stairs that look and sound like piano keys have been installed at a subway station in northwest China's Xi'an, letting commuters play music when going up and down the CGTN on Twitter: "Stairs that look and sound like piano keys have been installed at a subway station in northwest China's Xi'an, letting commuters play music when going up and down the](https://pbs.twimg.com/media/Di864C0UcAAAxmt.jpg:large)
CGTN on Twitter: "Stairs that look and sound like piano keys have been installed at a subway station in northwest China's Xi'an, letting commuters play music when going up and down the
![Piano Stairway Stock Illustrations – 11 Piano Stairway Stock Illustrations, Vectors & Clipart - Dreamstime Piano Stairway Stock Illustrations – 11 Piano Stairway Stock Illustrations, Vectors & Clipart - Dreamstime](https://thumbs.dreamstime.com/b/d-piano-stairway-illustration-isolated-black-46623567.jpg)
Piano Stairway Stock Illustrations – 11 Piano Stairway Stock Illustrations, Vectors & Clipart - Dreamstime
![DON'T TAKE THE ESCALATOR – MAKE BEAUTIFUL MUSIC WITH THE PIANO STAIRS INSTEAD 54 steps in Wulin Plaza, Hangzhou have been converted into piano keys that will let pedestrians play a melody DON'T TAKE THE ESCALATOR – MAKE BEAUTIFUL MUSIC WITH THE PIANO STAIRS INSTEAD 54 steps in Wulin Plaza, Hangzhou have been converted into piano keys that will let pedestrians play a melody](https://c8.alamy.com/comp/DX643N/dont-take-the-escalator-make-beautiful-music-with-the-piano-stairs-DX643N.jpg)
DON'T TAKE THE ESCALATOR – MAKE BEAUTIFUL MUSIC WITH THE PIANO STAIRS INSTEAD 54 steps in Wulin Plaza, Hangzhou have been converted into piano keys that will let pedestrians play a melody
![DON'T TAKE THE ESCALATOR – MAKE BEAUTIFUL MUSIC WITH THE PIANO STAIRS INSTEAD 54 steps in Wulin Plaza, Hangzhou have been converted into piano keys that will let pedestrians play a melody DON'T TAKE THE ESCALATOR – MAKE BEAUTIFUL MUSIC WITH THE PIANO STAIRS INSTEAD 54 steps in Wulin Plaza, Hangzhou have been converted into piano keys that will let pedestrians play a melody](https://c8.alamy.com/comp/DX643W/dont-take-the-escalator-make-beautiful-music-with-the-piano-stairs-DX643W.jpg)