Can I access iphone song in unity3D? I want to create app such as music player. but I don’t know how to access to user’s music. 
Yes. You would want to use the media player framework. It will be a free update to the iOS SDK Plugin by U3DXT on Wednesday, 9/18/2013.
Or if you can’t wait, you can try it out for free by registering for the beta here: http://u3dxt.com/register
Use invite code: “BETA”
Thank you so much 