While classical music (as well as this particular tune) has long been used in cartoons, I can't say I've ever seen it used like it is in "Rhapsody in Rivets". It's darned clever and made incredibly great use of the music--integrating it into a film that is simply a delight to watch.
This film begins with the foreman on a construction job overseeing it just like the conductor of an orchestra. As he gesticulates, the characters working on the bridge do so in perfect unison with the music--or when they don't the foreman becomes very angry. Seeing hammers, jackhammers and the like perfectly times with Liszt's 'Hungarian Rhapsody Number 2' was pretty amazing. And, I am not surprised that this one ending up getting nominated for an Oscar for Best Animated Short. For kids, I'd score this one a 6, as kids want more humor and characters bonking each other on the head. But for older audiences, it deserves at least a 9, as there is nothing quite like it!