I mean I like the fairyland, magical and Christmas melodies, I was wondering what type of instruments is used to make them?

I don't know, if it answers Your question, but here You can find a very detailed description about musical boxes.

Anyway, may You will like this.

Have a nice day!

oh thank you so much, it's great ... could you also tell me what do you call this type of melodies?

I'm happy, if I could show You something You like. Well, TSO has a quiet a unique style. I'd say, that they are musical metal :-)

The song music box has an other version as well, where a lady is singing. This is a live recording.

I found an instrument that produce the same sound it's celesta... if you search it on Wikipedia

oh that's so bad I can't watch videos in You Tube, because of the filtering...

I'm at work, but I'll look at it later. Och, that's a pity. Contact me in e-mail, then we will solve this problem ;-)