These pieces have a film connection with me. The first time I heard them was probably when I was a child, and I first saw a Warner Bros. cartoon called A Corny Concerto. It was a parody of Fantasia, and it featured Elmer Fudd introducing two pieces of music: Tales from Vienna Woods and The Blue Danube. The first segment featured Porky Pig and a a hunting dog, pursuing Bugs Bunny; the second focused on a young Daffy Duck being wanting to be accepted by a family of swans, but all of attempts fail.
In addition both pieces inspired two separate MGM cartoons.
This one is about deer interacting with the faun known as Pan.
This one is a sweet fantasy taking place in the forest.
And here are the pieces in their original contexts.
Tales from Vienna Woods