Dw has a similar problem with music she bought from Rhapsody, and sheis no longer subscribed to it as it's not available in the UK. Is there a way to convert WMA files?
Stripping DRM from music files is almost certainly against EULA, and definitely against DMCA*, therefore the method is not something that should be discussed on this forum.
I will, however, say that google is your friend in such matters. Good luck.
*I am not interested in engaging in debate on the logic, rationale, fairness, good sportsmanship of it all. It is as it is -- act accordingly.