The other Albert Einstein, the violinist http://bit.ly/15yqSeF
Albert Einstein plays Mozart KV378 Sonata for Violin and Piano in B-flat? Probably an April Fool…although he did play violin, of course, just this recording probably ain’t him.
There are claims that it’s Carl Flesch, Szigeti, Kreisler, Menuhin. But, more likely is that it’s Daniel Kurganov, the person who uploaded the video and he has simply artificially distressed a modern recording.