Just spitballing an idea. Along the lines of airdrop, does the instructor have a machine that the kids can send their music to when they’re done? This would create a backup, which the instructor could then organize and upload to a server (google drive?) that can be shared with the iPads as read only, so the kids could redownload the file again if need be.
Do you think this cat is leading a double life? They’re raking in twice the treats and food!