The LEGO Ideas Grand Piano model kit (21323) is the perfect DIY project for those who have a passion for music and enjoy hands-on creations. With 3,662 pieces, this sophisticated, brick-built version of a concert grand piano can actually be played with! Recreate the hammer action of each piano key, the moving pedal, and other details such as the propped-open top lid and fallboard. Turn on the motor (six AAA batteries needed, not included) and play music through the free LEGO Powered Up app. Select 'user play' to play the notes yourself or activate 'autoplay' and just enjoy listening. With 10 songs to listen to and 4 to play, this set is perfect for musicians, piano players, and hobbyists. The set measures over 8.5 in. (22.5 cm) high, 12 in. (30.5 cm) wide, and 13.5 in. (35.5 cm) deep when closed, making it a stylish and impressive addition to any home or workplace. The set comes with step-by-step instructions, and batteries are not included.