Disklavier

My almost 3 year old managed to delete all the songs on bank 9, which was Sacred from our MkIII.
I had never backed them up because although the manual referred to a method in a section, that section wasn't in the book.

Is there anyway to get them back? There were a couple of these we really liked and I can't find anything like them.

Thanks,
Nancy

I went through all the material we got when we bought the piano new, but there was no disk with it.
The dealer in Richmond on west Broad street closed a few years ago so I don't know what else I can do.

We received a book, a special duster glove and some promotional material. We bought the piano new in 2009.

I wonder if we can buy a replacement or just that one volume.