Opera and storytelling

Last night I saw Macbeth at the Swedish royal opera house. It was stunning. My first opera and live Shakespeare. Very intriguing. In the intermission my friend, a producer at EA DICE, said an interesting thing: While opera is clearly far behind most other media in terms of storytelling the music holds up the experience making it excel as an art form.

First I just thought he had a fair point. Then I realised the same can be said for most games, which I'm sure was a thought he shared.

So what can we use to hold up storytelling in games? Interaction is what holds games as experiences up to a level of excellence but can it be used to save storytelling?