Player piano is a musical instrument that plays automatically without the pianist's intervention. It is also known as a self-playing or automatic piano. This remarkable device has been around for over a century and continues to inspire composers and music lovers worldwide. Some other synonyms for player piano include mechanical piano, pianola, reproducing piano, or roll piano. These names reference the player piano's unique mechanism where the piano keys, pedals, and hammers are operated by a paper roll with perforated holes that correspond to specific notes and chords. The player piano is a fascinating invention that has stood the test of time, and its many synonyms reflect its significance in the history of music.