Think of which "tune" first comes to mind, then stick it on this thread. If you think too long, that's cheating. Mine is Samba Pa Ti (?) by Santana.
Sirius by The Alan Parsons Project Sylvia by Focus was second and Jessica by the Allan Brothers band was third
Got a bit of murmering at the end so technically disqualified. Unless it's made you woefully depressed, in which case do nothing drastic and you're forgiven.
Again, someone is getting their nether regions kicked in the background, at different intervals so I can't call this instrumental. It is a corking listen though. BFC ought to run out to that. They'd be knackered after 10 minutes though.