A sad day to hi quality rock, his music had no clichés, it was above the standards of prog rock, his band Aphrodite's Child was a revolution in the early 70s, one of the best composers in rock, in the 70's there was a rumour that Jon Anderson wanted Vangelis in Yes but he was not English and was opposed by Chris Squire, what lead to various albums in duo with Jon Anderson as:
1980 - Short Stories
1981 - The Friends of Mr. Cairo
1983 - Private Collection
1984 - The Best of Jon & Vangelis
1991 - Page of Life
In 1992 France awarded him with Chevalier Order of Arts and Letters and UK nothing.
One of the best.
RIP