I chose this music box having been taught 'Yellow Submarine' in primary school by a teacher with a fondness for the Beatles. It has a pleasant sweet sound to it and brings back memories of practising 'Yellow Submarine' for a school concert. Cardboard outer layer (it's one of those crank handle music boxes - cardboard casing can be removed) is quite durable having spent an entire week in my handbag. One thing to note: it doesn't play the full song - only the chorus. These music boxes have a limited number of notes due to their mechanisms.