From adding music to a slideshow to adding sound effects to videos to bumper music for podcasts, there are plenty of classroom projects that require free audio files. If you find yourself or your students in need of some free music or sound effects, take a look at these sites that offer thousands of free and legal audio downloads.
https://www.freetech4teachers.com/2018/11/five-places-to-find-free-music-and.html