Elite culture vs popular culture. Also, is this the first time in film history when image bows to music (that is, sound)? I mean, obviously, in a "proper" way, since there were lots of merely talked films.
An enjoyable little short, with some interesting interplay between Mickey and Donald. The animation works beautifully, with some interesting jokes playing out visually which is a nice change from more modern animation's tendency towards dialogue based humor.
Mickey Mouse's transition to Technicolor is energetic and jampacked with details and antics of the characters, without ever seeming too chaotic or pointless. Excellent synchronization with music and image.