Hanna-Barbera did Charlotte's Web, not Disney. Above average animation for HB but still way below Disney.
Yeah, but its lots of musical creativity time (so-to-speak) on their hands. Maybe they did it out of boredome. Maybe they did it because it was a lot fun to try and accomplish.Really? Dang. Oh well, the more you know.
The Bambi synchronization is cool too.
You know you've got too much time on your hands when you sit there and say "Hey, I'm going to write a song that goes exactly to a movie about animated deer and bunnies."