Pretty sure a Klavins is what Nils Frahm plays on for some of his albums - an Una Corda specifically, which has a distinctive sound because it only has one cord per note instead of 3 like typical pianos. It gives these albums a ‘simplified’ sound, and along with his compositions, they are amazingly tranquil.
Edit: I’m unable to watch the video at the moment since I’m at work - apologies if all this is covered in the piece!
