Without getting all pseud-y, I think it's more to do with how we consume media generally. For a lot of people, music is just another information download - we skim it the same way we jump from one web page to the next. We're increasingly encouraged not to commit to anything for any length of time or in any depth. We digest the salient points and move on. Apparently we are finding it harder to sit down and read a whole book these days. All this explained better in:
Without getting all pseud-y, I think it's more to do with how we consume media generally. For a lot of people, music is just another information download - we skim it the same way we jump from one web page to the next. We're increasingly encouraged not to commit to anything for any length of time or in any depth. We digest the salient points and move on. Apparently we are finding it harder to sit down and read a whole book these days. All this explained better in:
http://www.theatlantic.com/magazine/archive/2008/07/is-google-making-us-stupid/6868/