I've been learning a lot about audio engineering this week, and was fascinated to discover that something I thought about modern music was essentially true: that a lot of it does, indeed, all sound the same.
This article can explain it a lot better than I can, and you should read it.
What it all comes down to is the 'loudness war', which is another interesting topic that you should read about. Basically, pretty much everything you're going to hear on the radio and on most popular CDs is as LOUD as possible. This leads to a reduced dynamic range (which is the difference between the loudest and quietest parts of a song) as well as distortion in the sound.
Anyway, read the links for yourself, as they are far more informative that I could ever be. And stop listening to the shitty loud commercial radio stations in your local city. But thats a different topic...
Coming soon: We've just visited a cooperage (place where they make oak barrels for the scotch whisky industry), a coppersmiths (where they make the stills) and the Blackgrange fucking huge whisky warehouse (where Diageo stores all the scotch for aging)... so expect a write up on all of that soon.
11 hours ago