A guitar attached to a car (regardless of the mode activated) produces car sounds: engine starting, horn, etc. A guitar disconnected from the car works in two modes: key sounds and ready-made melodies. The drum works in 2 modes: drum sounds (when disconnected from the car) and ready-made sound effects: horn, engine start, the sound of a spinning pear, happy melodies - when attached to the car. Pressing the barrel turns on the lights. The piano works in 2 modes: key sounds (when disconnected from the car) and ready-made sound effects: horn, alarm siren, engine start, melody (when attached to the car).