I have confirmed the operation, and only the notes on the D key do not sound, so I will list this item as a "defective" product. Please note that this is a used item and may have scratches and signs of wear. *Please refrain from purchasing if you are sensitive to such imperfections. *We cannot negotiate price reductions or reserve items, so please understand that we will not respond to comments requesting these. Free shipping nationwide! Musical instrument Music Showa retro Rare Electronic Keyboard Piano Keyboard instrument