I saw a beautiful version of this card on Pinterest, but it didn't make sense to me. I maybe wrong, but I think it was designed to lay flat as it had a support built in to prop the top black layer up as though it were a real piano. So I decided to change it up so that it stands up like a regular card.
I used black glossy card for the top of the piano and Stampin' Up's "Sheet Music" background stamp behind the piano top.