Getting music information from iPhone


I'm new here and I'm tryng to connect my iPhone and Arduino wirelessly to get music information that which song is playing from the iPhone (just same as Bluetooth car audio system) to change the speed of servo motor depending on music and its artist.

I saw similar project below, but this project connected iPod by hardware stuff.

and I tried to use a bluetooth audio receiver (not the below one but similiar thing)

by connecting to Arduino through audio jack, but that just delivered music itself
and still I wasn't able to catch the information which song was playing and who was the artist.

Any help or advice will be appreciated.