Ukulele left hand assistant
For the smallest Ukulele, it needs at least 4X12=48 tiny lights.
Or maybe not necessary to cover the whole frets.
Therefore, the plan is to have 4 strips of tiny bulbs connected with baterries or USB and Arduino （PC，Plug）
This idea is to cut a piece of wood strip into the Chinese landscape painting by CNC. Then put the LED behind the wood strip. Add some diffused material to make the painting like a silhouette drawing with the colors changing or just different colors.
For wall decoration.