I was doing some "cleaning" on my ipod and ran into this song and started to listen to it and suddenly, the visual of me playing the theremin and the aerial fingering came easily to mind. So... I Video recorded it (it's on YT) and it has such a beautiful and haunting quality to it... Beautiful! I realized that I am drawned to melancholic type of songs in general, so this one fits the bill perfectly. :)
You might be too bored with "watermark" if you are in an advanced level... But it is a beautiful song nonetheless :)