Just saw an interesting article in the Weekend WSJ. The Beatles are releasing a "new" song.
Lennon had recorded it at home, as a demo, before he died. Then the other Beatles had recorded tracks to finish it, but they couldn't release it because Lennon's track was badly recorded, with background noise.
Now, they were able to use AI to clean it up. The article says "Along with tambourine, electric harpsichord and other instruments listed in the credits for the song, 'machine learning' and 'source separation' are also cited."