Hello! When you play from a save, (which I'm assuming you're doing since you switched devices) the music doesn't automatically start. As far as I can tell this is a Sugarcube thing and no real way to fix it. The music will kick in when you hit a scene or passage where the music changes, for example between chapters 1 and 2. If you start a new game on the browser, you'd hear the music fine from the beginning.
I hope that made sense!