Playing the piano can work wonders: whoever can play it, can also heal with music. Piano music is comforting and liberating, and it alleviates stress.
The video below is unique: the young man who plays the piano does nothing else but brings calm and peace to people waiting for the train, touching their souls. After a short while, another young man joins him, who also starts playing the piano, first with one hand, then with both.
The result is a wonderful, soul-soothing concert. The song they play the Una Mattina, composed by Ludovico Einaudi.