[Shibboleth]

I have a H12 Moto Earpiece and a HS850 for my BB Curve 8330. I have heard several different people say that you can use it (H12) to listen to music via media player. At the same time I have heard people say that you can not. 1)Which is accurate? 2)This debate also says that only a stereo headset covering both ears is the only way you can listen to music, Podcast and such. 3)As it is illegal to drive and have both ears covered is there a single ear piece that works? 4)Last are there any special settings to get a BT earpiece set up to listen to music on the BB Curve 8330?

Thank you to all that help