Default [Q] Google music in Canada with moded Google play

Hi, I'm new here and new to android in general. I really want to be able to use the Google music service on my new nexus 5 but its not available in Canada. I saw a post somewhere about a modes Google play.apk that would remove any country restrictions allowing me to access and download the music app. Is this possible? It was for a different type of phone and when I tried to install it just failed.