The animated dog character and the clear numbering on the piano keys.

The video is split into two halves. The top half shows an animated dog character in various scenarios: being held, biting a green object, wearing a bandage, holding a rifle, and finally sleeping with a cat on its back. The bottom half shows a person's hands playing a piano keyboard, with numbers overlaid on the keys corresponding to the notes being played. The numbers change with each scene in the top half, indicating a sequence of notes.