Possibly Chopin's first piano and maybe Beethoven's 5th.The first movement begins by raising the hands. The music begins. The second movement requires a sliding of the top followed by lifting the lid for the 3rd and 4th movement. Piano Musical puzzle box has a velvet flocked storage compartment. There is absolutely nothing, no nothing in the world like this piano except perhaps Noah's Arkestra.

Size approximately 6"long x 5"w.