I tried to find a list of tunes from the game but I only found clues on how/where to find each music box in the game, including the place names of locations. There are YouTube videos of each scene. Do you know where in London that particular music box was located? If you do you might be able to find the correct video.

(Note: Spoiler alert if you are also trying to play the game without clues it would take the fun out of it. LOL)