Adding objects to animations

[Sanvean]

First I'm sorry if somebody has explained this before, but I couldn't find a topic that matches my question.

Ladies and gents, does anyone can tell me (or knows a good tutorial) how to add an object to the animation? Well, for example 'Actors In Charge' has a reading animation, and I would like to make an animation of dance and playing violin and the same time (to be honest, I'm totally inspired by

). Should I import both violin and bow meshes and then merge them somehow with skeleton?

Thanks in advance for your replies : )