This is definitely a lost gem of intricate and innovative, all instrumental Progressive Rock with the six tracks offering bombastic and complex music with Fusion and light symphonic elements, somewhat pointing out Delaunay's future with TIEMKO.While it lacks the more Avant Garde touches of the later and it's built upon a questionable production result, ''Antagonisme'' is a monumental work of captivating and adventurous pieces, executed along the lines of KING CRIMSON, HAPPY THE MAN, GENTLE GIANT and THE MUFFINS, based on endless breaks, pounding drumming, very complex bass work and virtuosic guitar plays.The album comes mostly in a Prog/Fusion vein with impressive time signatures and technical moves, which burst evident symphonic and jazzy influences, performed in a unique way with a certain rockin' attitude and some slight experimental passages with odd synthesizer lines and melancholic guitars in the process.For fans of more down-to-earth music forms, ''Antagonisme'' contains also plenty of beautiful melodies in some guitar parts like on ''Amuse-Gueule'', which holds some similarities with HOLDING PATTERN or ''Final'' wiith its excellent guitar moves and the dreamy keys in the background.