Richard, like most Londoners, barely heard it anymore-itwas like aural wallpaper.

In other words, Vivaldi playing that's set on not becoming anyone's aural wallpaper.

The lyrics, however, are too bland to serve as anything more than aural wallpaper.

And what's the difference between ambient music and aural wallpaper, relaxation and aural wallpaper, relaxation and irritation?

Is Radio 4 aural wallpaper?