Can unity build music tap game?

I would like to know whether unity can build music tap game like:

http://itunes.apple.com/hk/app/tapic/id371114038?mt=8#

How to access device’s playlist?

How to read the music and convert to music notes?

Anyone tried ?
http://www.theiphonedev.com/SourceCode/CodeSearch/tabid/144/agentType/View/PropertyID/7/Default.aspx
http://www.ipodtouchfans.com/forums/showthread.php?t=194954

Any experts have that experience to build such kind of game in unity?

device playlist access happens through a plugin you write to use the ipod library.

but if you use that, you can not access the music in any way, you can only play it back.