Mine wont even play

I was excited to get this app after
reading the details and reviews; I just need something for that final "total pop out" for a complete AP, but when I open it and push play, nothing happens?! Im using the best headphones (Dr. Dres Beats-$$$, pricey but well worth every penny; better then Bose I think!!). Volume is working, other apps are working fine, and everything is synced, so why wont this app work for me? Please, any ideas or answers let me know!!

Preciouslilshorty about Binaural Beats: Out Of Body Experience I - Astral Projection