Something to consider: when you shoplift an inexpensive item (a toothbrush for example), you are guilty of petty larceny. A judge won't send you up the river for 5 years to teach you a lesson, or deter others unless we live in Syria. There is no petty copyright infringement, which is another reason that the law is way behind the technology. If she is morally guilty of stealing music, why is it right to convict her of copyright infringement? Her intentions were probably to listen to some free music, not use that music for profit, and deny a company the rightful compensation for it.
Stealing music should be dealt with as larceny.