i think you mean
o fortuna from carmina burana
(
Spoon,
Mon 29 Sep 2003, 2:31,
archived)
Wait a minute...
Isn't it the theme from Excalibur?
(
Agdymahoozle,
Mon 29 Sep 2003, 2:41,
archived)
I once heard someone call Canon in D
"the G.E. light bulb song"
(it was used in a G.E. advertisement here for years)
(
Cheril,
Mon 29 Sep 2003, 2:45,
archived)