https://www.spectator.co.uk/2020/01/beethoven-wasnt-just-historys-greatest-composer-but-also-one-of-its-greatest-human-beings/
https://bigthink.com/news/ever-get-the-tingles-from-listening-to-good-music-that-part-of-your-brain-will-never-get-lost-to-alzheimers
https://slippedisc.com/2019/11/martha-argerich-aged-8-plays-beethoven-concerto/
BBC News – How pianos became part of the furniture at UK railway stations https://www.bbc.co.uk/news/uk-50158653