Cake is made using two 10" and two 6" round cakes. Cakes are covered in buttercream with the piano keys and musical accents created from modeling chocolate. Place the 6" rounds at the edge of the 10" base and cut the angle for the piano keys. Keep the angle cut pieces and place them (inverted or upside down) on top of the base to finish the piano keyboard ramp to the top of the 6" tier. This was actually quite easy to put together and a big thank you to another cc member who posted a similar cake!