For those who like me didn’t immediately understand what was meant by a “player piano”: https://en.wikipedia.org/wiki/Player_piano https://en.wikipedia.org/wik

For those who like me didn’t immediately understand what was meant by a “player piano”: https://en.wikipedia.org/wiki/Player_piano https://en.wikipedia.org/wiki/Player_piano A player piano (also known as a pianola) is a self-playing piano, containing a pneumatic or electro-mechanical mechanism that operates the piano action via programmed music recorded on perforated paper, or in rare instances, metallic rolls, with more modern implementations using MIDI —- On the same site as the OP, there’s a sort of introduction to this topic: https://www.player-care.com/mybook.html https://www.player-care.com/mybook.html