"666" is a prog legend among albums, likely the best known and most appreciated one by Aphrodite's Child. This highly descriptive track is a perfect depiction of the sea, as it is based on the wave breath and is graced by Vangelis' inspired keyboards. This man, whose real name was Evangelos Odysseas Papathanassiou (Ευάγγελος Οδυσσέας Παπαθανασίου, in Greek alphabet) surely is one of the best reasons to the band's celebrity, but I won't forget Demis Roussos' high-pitched voice, something you won't find in this song.
The band split up during the sessions of this album.
By the way, you'll appreciate here one of the most fascinating and ethereal guitar solos by Anargyros Koulouris, aka Silver. The emphatic tone of the album - inspired by the Bible's Revelation book - is less important in this track, featuring an atmospheric mood that actually announces some of Vangelis' future releases.