Positive messages: music to your ears?

Research conducted by Dr Tobias Greitemeyer , senior lecturer in psychology at the University of Sussex, shows that students made to listen to music that contains a positive message were more likely to act considerately afterwards than those listening to music with a more neutral lyrical content. These "pro-social" songs, such as Michael Jackson's "Heal the World" , or "Help!" by The Beatles , appeared to have a beneficial impact on volunteers, who were subsequently more helpful and empathetic in tests conducted during the study. If music can encourage grumpy students to be socially responsible young men and women, then what should they be listening to? And what are the songs that you would recommend to your fellow Cif users, in order to encourage a pro-social start to the year? Do you know of any songs that should be avoided, so as to prevent an outbreak of antisocial behaviour?