It's an interesting point Pathfinder, and it does underline the success, and therefore increase, in ads using popular music. The reason why questions crop up here is because it's possible to hear the same memorable snatch of music several times, but have no way of knowing what it's called. And that is exactly the purpose of The Answerbank, because someone somewhere will know, and will tell you - it's a brilliant and highly successful concept. As far as listening to music 'for the sake of it', we must accept that we live in a far more visual age - and a lot of people enjoy pre-set images to accompany their music. Some don't, and for them, making their own images enhances their enjoyment, but there is plenty of room for both.