"Yes, in that the actual songs drag the plot forward. That's essentially what a musical is, it's like, I think the saying is, 'When you can't say it, sing it, when you can't sing it, dance it.' That's kind of the idea, because there's subtext in songs, and it's hard to get that in dialogue only." - Jim Doole

I'm not into musicals, but the songs in Disney films never fall into that category for me. I'm excited to see how they turn out in Epic Mickey 2.