I have a ton of music on my phone and uploading it all to Google Music would save me a lot of space. But not all of it was purchased by me. Some was given to me by friends and acquired via torrents and whatnot. If I upload this questionably obtained music to Google Music am I going to have any legal trouble? Will this eat up my battery if I'm listening to music I've uploaded? I understand this requires a data connection to be used and that seems like a battery killer.