Want to play 2 audio files at once Is there an audio app that will play a stereo file in the background, even if I start playing audio in another app?  In other words, when I try this using Google play music and Poweramp, Google play will do it but pauses itself when I start a new track in Poweramp.  I would like it to continue playing as background to everything I'm doing.  

Thanks!
Certain players have an "audio focus" setting that will allow it to ignore other apps and actions.  I found Rocket Player and Poweramp are two of them.