3.Psychologically uniting the audience
One of the most obvious case of such a function of music are national anthems whose function of course also is, to unite the "nation". The same works in the music.
Especially euphoric, heroic emotions can be used very effectively to get this collective emotion. Often, well known songs/music pieces can be used for that as they are easier accessible than music that the audience hears for the first time. However, even a very heroic score cue on top of a scene where the heroes of the movie walk through a crowd applauding a cheering at them after they fought the last big battle and won can create exactly this collective feeling of having been part of all that also with the audience. Epic Hero
is written in heroic mood. The mixture of hurdy-gurdy, ethnic strings and modern native orchestra created a unique atmosphere that effectively evokes a collective emotion. An Epic Hero
is mixture of adventure, war and heroic motivational sound transiting into calm and sensitive, inspiring love story ending. The audience simply transits between heroic and sentimental feelings.