Eduard Artemiev - The Mirror, Stalker, Solaris OSTs
Eduard Artemiev was the composer of the hauntingly beautiful atonal music of the (arguably) three most famous films of Andrei Tarkovsky. Ligetiesque, and elements of the Solaris soundtrack distinctly remind me of the classic Louis & Bebe Barron soundtrack for Forbidden Planet. I just rewatched The Mirror (Zerkalo) for the second time, it still possesses me with its vast serenity, and memory-like structure. Artemiev's electro-acoustic and orchestral music, along with the classical music he selects, are Tarkovsky's perfect accompaniment.