I haven't watched episode 9 yet (so I'm not peeking at the last few posts) but one thing that gets me about Westworld is how little they talk about the "real world". The level of tech they have for these replicants is astounding and you'd think they'd have less lifelike robots like that everywhere ... Dr. Ford talks about being 'near the end of human evolution' (sorry paraphrasing) but so little is known about what's going on outside the park.
Can't see the video, but are you talking about the player piano? Cause yeah, I like the different renditions of songs, so far my favourite is "Paint it Black".