Music Transfer; Android to Iphone?

So I want to make the switch from an Android to Iphone. I love the though of an Iphone but the only thing that really bothers me is that I'll be losing my music. Is it possible to transfer my existing music from my Android to an Iphone. If so, how.

Volume on iPhone works then randomly stops working?

Was listening to iheart radio from my ihome when music randomly stopped now nothing has volume, vibrate button is off when I go to which videos the volume bar isn't even there to turn it up or down. When I press the side volume button it says ringer speaker icon is full but no matter if I press it up or down it doesn't move, what could be the problem?