I play the guitar, and if you want to learn you can either teach yourself or get lessons. The 6 strings are E, A, D, G, B, E. If you are buying one then get a steel string over a nylon as these sound much better (I have both so I know). Good luck in learning guitar :)
Well there are lots of different ways you can study/revise for a test. You could just go through your books reading and absorbing the information, or make notes on the most important information. Some people find it more useful to create a mind-map or to stick post-it notes around your room or house so you are constantly looking at and absorbing the most important facts. I have just finished my mocks, and when I was revising I just read a bit of my revision guide each night before I went to sleep. Apparently revision is more effective if you do it before bed! Hope this helped :)
Hi - If your phone is Android then there is an awesome app called "gtunes mp3 music download" which I have and you can download any song for free to your phone! I have downloaded loads and it hasn't cost me a penny its great! Hope this helped :)