Are certain classical pieces such as William Tell Overture subject to copyright?Watch
Can people freely use this music without problem? Or do you have to credit the person leading the orchestra or pay them?
I am interested in using works such as Rossini, Beethoven, and Vilvaldi etc. in a video is this possible?
You also, which I think is your question, can't use a recording because they, I believe, are protected by copyright laws. For example, I could use the music for "Nessun Dorma" and recreate it, without copyright problems, but I'm not allowed to use Alfie Boe's recording of Nessun Dorma, because that's his.