Reason why some audio files won't move

[Android Central Question]

I'm currently moving all my music on my galaxy tab E from internal to 126gb sd card, but as most song files will move, there are a few that won't. Same file type (mp3) from the same source (pandora download), but it can't be copied or moved to my sd card. I want to know more as to why this is happening

 

[B. Diddy]

Welcome to Android Central! What directory are those downloaded songs from? If they're in a protected system directory, you wouldn't be able to manipulate them. It might be a precaution to prevent people from downloading a bunch of music from Pandora and then cancelling their subscription.