I found this beutiful tune
\HVSC\C64Music\MUSICIANS\T\Tinnitus\Asterion\Song_Of_The_Dryad.sid
Stil.txt does not mention this tune but Tinnitus website mentions the tunebeing of celtic origin/influence. This sounded so familiar to me that I am sure that I've heard this somewhere.
EDIT2009-03-09:
Got a reply from Asterion and he confirmed this as his original tune inspired by works of Vangelis. Expect some sort of remake. This is a Wonderful song.