Early printing telegraphs used keyboards like musical ones: https://en.wikipedia.org/wiki/File:Telegraph_Keyboard.jpg https://en.wikipedia.org/wiki/File:Telegr

Early printing telegraphs used keyboards like musical ones: https://en.wikipedia.org/wiki/File:Telegraph_Keyboard.jpg https://en.wikipedia.org/wiki/File:Telegraph_Keyboard.jpg https://en.wikipedia.org/wiki/File:Printing_Telegraph.jpg https://en.wikipedia.org/wiki/File:Printing_Telegraph.jpg See the article for some words on the topic: https://en.wikipedia.org/wiki/Printing_telegraph https://en.wikipedia.org/wiki/Printing_telegraph > Hughes telegraph devices, which also had piano style keyboards, were very popular in France, where there were likely many more piano and harpsichord players than telegraphers.