I notice that on at least one London station St Pancras International, they have installed at two pianos on the ground floor on a busy thoroughfare between the Underground station and the National Rail station. Anyone can play if they choose to, there is no charge. Some passengers actually turn out to be extremely talented, and a real pleasure to listen to. None more so than seeing an 8 year old boy attempting a Chopin piece.
Below is a link to a You Tube video of one such person who self taught himself to play.
https://www.youtube.com/watch?v=rRfxDj-R1kc
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