Legal analysis: adding background music mainly involves the performance right in copyright, including live performance and mechanical performance. The former refers to the behavior of performers to show their works to the audience; The latter refers to the act of spreading recorded performances to the public in the form of material carriers such as records and CDs. Specifically, after shooting a video, add background music and perform a published work for free according to the law. If the performance does not charge the public or pay remuneration to the performers, it belongs to the fair use of the work and can be carried out without the permission of the copyright owner. However, the name of the author and the title of the work shall be clearly stated, and other rights enjoyed by the copyright owner in accordance with this Law shall not be infringed. In other words, the video and public release after adding background music are free and do not constitute infringement. However, if there are fees, or if fees are charged directly or indirectly by publishing paid advertisements, it is an infringement and requires legal responsibility for infringing intellectual property rights.

Legal basis: Article 22 of the Copyright Law of People's Republic of China (PRC) may use a work without permission and without payment to the copyright owner. Including: 1, used for personal study, research or appreciation, using published works of others; 2. In order to introduce and comment on a work or explain a problem, appropriately quote the published works of others in the work; 3. In order to report current news, it is inevitable to reprint or quote published works in newspapers, periodicals, radio stations, television stations and other media; 4. Newspapers, periodicals, radio stations, television stations and other media publish or broadcast current affairs articles involving political, economic and religious issues that have been published by other newspapers, periodicals, radio stations, television stations and other media, unless the author declares that they are not allowed to publish or broadcast; 5. Newspapers, periodicals, radio stations, television stations and other media publish or broadcast speeches delivered at public meetings, unless the author declares that publication and broadcasting are not allowed; 6. Translate or copy a small number of published works for classroom teaching or scientific research in schools for use by teaching or scientific researchers, but they shall not be published publicly; 7. State organs use published works within the reasonable scope of performing official duties; 8. Libraries, archives, memorial halls, museums, art galleries, etc. Show or save the version and copy the works collected by the library; 9. Performing published works for free, without charging fees to the public or paying remuneration to the performers; 10. Copying, painting, photographing and video recording works of art set up or displayed in outdoor public places; 1 1. Translate the published works written in Chinese by China citizens, legal persons or other organizations into works written in minority languages and publish them in China; 12. Change the published works into Braille for publication. However, this article also stipulates that the name of the author and the name of the work should be indicated when using it.