Music is used the world round to show emotion ~ joy, pain, sorrow, anger, love ~ it is a language everyone understands.
Last spring the city council installed a piano for passersby and travelers to play and enjoy at a train station in Paris.
While one man was playing the piano another traveler walked by and stopped. After a moment of hesitation, and without saying a word, he reached down and started playing on the other side of the piano.
Soon, the two strangers were performing a concert for the entire hall of travelers who broke out into a applause when the music finally ended.