Scientists and music professors at Cambridge University came together to find the saddest song ever made. They went through thousands and thousands of music sheets, some even dating back to the 16th century. They went through composers like Mozart, Beethoven, Franz Schubert and Johann Sebastian Bach. They tested the songs on hundreds of different people, observing The Limbic system, which is the part of the brain which controls emotion, like sadness, happiness and anger. After 7 years of research and observation, they finally found a song which made 94.7% of listeners cry or feel an overwhelming of sadness come across them. This is the song they found.