"Kill the Wabbit" is from the Warner Bros. cartoon "What's Opera, Doc?" directed by Chuck Jones. I'm fairly sure it was also he who directed a parody of Disney's "Three Little Pigs" without dialogue, but with music from Brahms' "Hungarian Dances". There was another cartoon with music where animals were building a skyscraper, but I don't know the composer.

Jones loved music and made several musical cartoons. One used the tune "Little Brown Jug" and the characters were the notes on the score.

Hugh Harman und Rudolf Ising made many musical cartoons at Disney, Warner Bros. and MGM. One that sticks in my mind especially used Strauss' "Tales of the Vienna Woods".