Whenever you buy a song, a song, you feel bored or drive is full, you will not dare remove it. And let it remain so. But free it makes you regret anything.
Whenever you purchase music from birth, then you keep music tattoo or the drive is full, you will not dare to delete it and let it remain so, but loaded for free it makes you don't want to regret anything.
Whenever you buy music, and music for a while, and then you have to be weary of drive or full you didn't have the courage to remove it and let it, but it is still a free download of it, you do not need to regret anything.