It is a gem. Book contains sections on various percepctives on emotions and music like psychology, biology, athropology, and aesthetics. There is also section Music as source of emotion in film. Unfortunately, but not unexpectedly, computer games are not covered:( Nonetheless, the book seems really valuable for the paper I am currently working with.
Juslin & Sloboda (2001). Music and emotion: Theory and research. Oxford: Oxford University Press.