Mellotronists

Brian Eno did some of the Windows 95 sounds.  (The 3.5 second start-up 
sound).  Now Robert Fripp has been hired by Microsoft to do sounds for 
Windows Vista.  For 3.5 second sounds, he is likely being paid fairly 
well per second.

http://www.vnunet.com/vnunet/news/2148180/robert-fripp-helps-microsoft
There is a video clip here... (useless video but the audio may be of 
interest).

Clay