Apparently the most heard piece of music ever is not Paul McCartney's 'Yesterday' or 'Happy Birthday' (I don't mean Paul McCartney's 'Happy Birthday' from Abbey Road, I mean the regular singalong in a quiet voice until the name part of the annual chant). It's the Nokia ringtone.

Well, that might change. When everyone's upgraded to Vista, we'll all hear the gentle startup chimes more times than we'll be able to count.

Did you know that it took 18 months and a team of 20 composers, sound designers, engineers, and developers to compose and agree on the tune?

It's just been trademarked by Microsoft in Australia, so forget trying to mix it up as a dance anthem or sell it as a ringtone.

Read more about it here.