Karina Bender and George Grigoryan, engineering students at UCLA, have successfully created a self-playing piano capable of playing all 88 keys simultaneously, a unique feature not found in other designs. Their project, which began in fall 2024, involved significant planning and engineering challenges, including designing an electrical system that could handle the power demands of all keys being played at once. They utilized MIDI files to control the piano, employing solenoids to strike the keys from underneath. After months of prototyping and problem-solving, they achieved a breakthrough when the piano played Chopin's 'Revolutionary Étude in C Minor' for the first time. The project culminated in a dramatic demonstration of all keys being struck simultaneously while playing the complex piece 'Rush E,' which is physically impossible for a human to perform. Bender and Grigoryan plan to showcase their work at the Open Sauce science fair in San Francisco, and they have documented their process in a detailed instruction manual for future improvements.