我如何识别Android中某个人的播放列表中的歌曲？

I am creating an app that plays music from a movie, and prompts the person to guess the movie. Do to the fact that this may infringe on copyright laws, I want to make it so that it only uses music in a persons playlist. The problem I am having is in recognizing the music. I need to know how to: 1. Where in the android I would find the music 2. How I would recognize the music (i would probubly hope to do it through sound recognition like shazam orI am creating an app that plays music from a mo