This AI has reconstructed actual Rachmaninov playing his own piano piece

Am I missing something here? Essentially this is a good deepfake white labeled as a product. Nifty definitely. But sometimes I wonder to the ramifications of off label use. See below:

This AI has reconstructed actual Rachmaninov playing his own piano piece By Rosie Pentreath @rosiepentreath via classicfm.com

In 1919, Rachmaninov’s performance of his own devilish Prelude in C minor was punched into piano roll for posterity. Now you can see him play it. No, really.

In 1919, legendary Russian composer, Sergei Rachmaninov, recorded his own performance of his Prelude in C minor onto piano roll, so it could be preserved as a recording.

The Prelude in question is a very difficult piece, and Rachmaninov was able to play its hardest passages up to speed, and with exhilarating energy.

And now – as well as hearing the performance through the historic piano roll, you can now see the performance (watch above).

Through clever artificial intelligence (AI), Canadian technology company, Massive Technologies, has produced piano-playing hands that allow you to all but see Rachmaninov in action.