There is no real plot to The Skeleton Dance, it just features a bunch of skeletons having fun and making music in a graveyard one dark and scary night. The concept of the short was thought up by Carl Stalling at an idea meeting with Disney, who suggested making a cartoon short based simply around music. Silly Symphonies dominated the Oscars for years to come after Walt introduced colour (and won an Oscar) in 1932 with Flowers & Trees. The name Silly Symphony was, as one can imagine, a direct influence on Warner Bros. decision to use the (now) more familiar title of Looney Tunes.
In 1994, in Jerry Beck’s book The 50 Greatest Cartoons: As Selected by 1,000 Animation Professionals, The Skeleton Dance was voted number 18. It remains a popular film to reference, and has been “quoted” or can be “seen” in films as varied as Forbidden Zone (1982 / trailer), Look Who's Talking (1989 / trailer), Corpse Bride (2005 / trailer) and Ghost Rider (2007 / trailer).
So, now that you know the trivia, sit back and enjoy 5.5 minutes of innocence from the days when animation was still learning to walk.