When I was a kid I had a friend who could tell me the make, type and engine size of the unseen car coming around the corner just by the sound it made. We were about 10 at the time, but even so I was sure it was some sort of trick. Was he using reflections in house windows? But no - he could tell them all, where all I heard was a car engine (though I might, at a push tell if it was diesel). I've since met others who can do exactly this - & car mechanics who can tell by the sound of our healthy car engine that all is not as well as we'd hoped.

That said, I can just imagine one of said mechanics (maybe my old childhood pal himself; he had the splendid name of David Crackett though I think he went into double-glazing) muttering his cups: "Trouble with pop music today - all sounds the bloody same!"

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Ever visited that sight that tells you the Number One Pop Song for your birthday? I did, and got THIS ghastly piece of formulaic MOR dross which I guess was the one of the reasons things just had to get better, which they did, and continue to do so without petty studies like this wasting precious time & resources.