Big Piano (The Walking Piano) is a musical instrument, invented in 1976 by Philadelphia, Pennsylvania kinetic artist and inventor Remo Saraceni,[1][2][3] merging dance, music, and play. The Piano is played by the user's feet where shoes, socks, or toes can tap the keys that make the music.
The film Big brought attention; the filmmakers saw it on display at the FAO Schwarz toy store with other Saraceni's designs and inventions. In a demonstration, Tom Hanks and Robert Loggia play "Heart and Soul" and "Chopsticks" without any film tricks. After Big, museums now have their own. The synthesizer is updated to produce realistic piano sounds electronically.