Why can I only concentrate when I'm listening to music?

I find it quite hard to concentrate and i can only really concentrate when i listen to music. Why is this? Also how can I explain to my mum that it helps me concentrate because she's always taking my iphone away

I also need music to study and the reason is simple: I'm very sensitive to human voice and if there's someone beside me talking, even in whisper, it immediately distracts me. Also the cacophony of the horns and car sounds of our street causes me to lose my attention and gives me headache. I use music as an isolation method. For some people that might not work as well, but apparently it does work for you. Maybe tell your mother this and she will be more understanding.