The Three Little Pigs are based on the characters from the fairy tale of the same name. In Disney's Silly Symphonies version, as in the traditional version, the three pigs each build a house made of different material. The big bad wolf blows down the first two houses, but fails to destroy the third.
House material: sticks
Particularities: plays the fiddle; wears a sailor suit and hat
House material: straw
Particularities: plays the flute
House material: bricks
Particularities: hard-working, serious; plays the piano