Well listening to music and playing game is a very simple thing to do but for listening to music and I sent I'm reading and you told me that you can comprehend what you are reading at the same time then that is very surprising and I find it hard to believe.
I have tried watching a cricket match while eating food. Honestly speaking, I was not able to concentrate on the match as I was concentrating on the taste of food. I do not know how come some people are really good at multi-tasking. I cannot focus on my food, so I would find it really hard to focus on music.