Target auidence of my magazine

The target audience for my magazine is teenagers/early adults from ages 16-24. The SEG will be working class C1-E because the magazine is not to expensive but enough so people who work or have a income can afford. The target audience will be interested in the alternative music genre,they will listen to bands such as Muse,Vampire weekend and The cure. It will be a British published magazine which means the audience will be from either,England,Scotland,Wales or Ireland.