I understand that Sarabande in D Minor by Handel is one of the pieces of music played during Laurence Rees Auschitz series. Does anyone else know the very emotive piece of music from the same series that features just the piano?
The piece you are looking for is by a composer Arvo Part and it is called "Spiegle im Spiegle."
It is available on Amazon.com, you can also listen to a sample.
Hope this is of help.
ps it is a beautiful piece of music