It seems like no good western movie is complete without a saloon with an out-of-tune piano. Pianos are hard to move and had to be fairly expensive, so were they really that common? It follows that a professional piano tuner wasn't a common job in the 19th century frontier, but did pianos come with a way to be tuned by amateurs?
Hi, not discouraging other answers, but fyi there was a related question which may provide an interesting starting point