Fail to download original music pack in PE

I have tried to get the music pack on Minecraft PE and it has two steps and it does the first one which is downloading but when it goes to importing it stays at zero percent for a few seconds then my phone freezes and it kicks me out of the download and I have to start the download over again. I've been trying to find help but I'm not getting the info I need. If someone knows what's going on and knows how to fix it please. I need help!