Is your music library entirely MP3, or are there other formats as well? - e.g. OGG, WMA, M4A, M4P, et, - maybe some have DRM? So they might not get picked-up within the particular Android music. Android apps should be able to play M4A, OGG, WMA, but not DRM'd WMA or Apple's M4P, iTunes only.
The People's Guide
to Android in the People's Republic.
Honorary Grand Poobah Shenzhen University English Corner.
There are nine million bicycles in Beijing.
There are nine million Androids in Shenzhen.