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by deanclatworthy 1732 days ago
If you want to see an example of this taken to the extreme then check out Olafur Arnalds semi accompanying piano. It plays along with him using a lot of music theory to create generational music in real time on the same piano:

https://www.npr.org/2018/07/19/630111211/one-key-many-notes-...

I tried to create something similar using web audio and a midi piano a while ago but the reason this works is you are applying digital processing to analogue output, along with Ólafur being one of the most talented composers alive at the moment.