The Gloom Chasers (1935) HD online

There is usually an underlay of weirdness to all the Scrappy cartoons, not just the ones where he goes to Mars or winds up being experimented on in a laboratory, and there is no shortage in this one as he and Oopie are a pair of wandering troubadours who wind up in a rain-starved farm, where their performance causes the skeletal animals to dance and sweat and finally the clouds to do the same. Everything blooms in the rain and end to a song.

This is near the end of 'rubber tube' animation and directors Sid Marcus and Art Davis supervise their animators in a very fluid and engaging exhibition of it -- notice the end sequence with the wood-chopping horse. I won't say that the Scrappy cartoons are to my taste, but there are corkers as examples of the non-Disney, non-Fleischer school of the era.