Small portions of a work may be allowed as fair use, while the entirety of the work is not allowed. However, there are no specific guidelines regarding infringement. If you are caught playing music in your business without a proper license, you may face hefty fines and even criminal charges. Playing music in your business is considered a public performance and you need a license to do so legally. A public performance occurs when you play music in a public place with members of the audience that go beyond family and friends.
I would like to use a part of an instrumental song that I found on the Internet as background music for the animation. Make sure that all your locations are playing the songs you authorized and make the changes from this same control panel. I mean, the songs are mine and if they don't sell well, but I have a feeling that they could, I have to offer them somewhere else. Customers looking for that song don't just go to your website and see your animation (which would be inconvenient), but they would buy the original CD or download the original music. To do so legally, you need a license from a performance rights organization (PRO), a company that collects royalties on behalf of music publishers and composers.
However, you can't just cut a 5-second clip from a popular song and use it in a Facebook ad, that's definitely not “fair use”, even if you're only using a very short clip. If you're looking for a song by a well-known artist, you'll need to contact their publisher and record label to negotiate the license. I really have the idea that a song that doesn't work in library A, for whatever reason, I'll rearrange it a bit, play a new main tune on the backing track and offer it to library B.
