I want to throw the instrument of a musician.
Is this something that you think is okay to do?
Of course I wouldn't do that because it would break his instrument and he will need a new one.
It is wrong to throw peoples belongings because they could be damaged. You should hand things to people so you don't look like a jerk.
It would be funny if his instrument got broken just to see his reaction.
I understand that you might not like this musician and there might be humor in thinking about throwing their instrument, but it's definitely not a desire you should act on. Destroying his property is wrong, not to mention illegal, and people will be upset with you.