Got my Zed when I was 25 and used to really love driving around listening to loud music, but the more I learned about 'proper' driving, the less I wanted to listen to music. I'm 30 now and never listen to music in the Zed. I much prefer listening to the engine now and it also helps with heel and toe down shifting as I can hear the revs much better.
PS. I'm fully aware that the above statement makes me sound like a bit of a 'beard and pipe' sort of guy, but I don't care