The video shows a group of cartoon animals playing musical instruments in a classroom setting. The animals include a pink pig, a white pig, a brown dog, and a brown and white dog. They are playing drums, a trumpet, and a tambourine. The classroom has a purple floor, green cabinets, and a blackboard with musical notes on it. The animals are wearing colorful clothes, and the pink pig is wearing glasses. The video is bright and colorful, with a playful and cheerful atmosphere.