Formed at Manchester University their brand of progressive rock was somewhat darker than many of their contemporaries, prompting comparison with King Crimson.

BBC: Magazine

"Peter was in Yes when they were formulating what would become their classic sound and they were as much a figurehead of progressive rock in its classic era as the likes of Genesis, Pink Floyd, King Crimson and Jethro Tull, " he said.

BBC: Peter Banks: Original Yes guitarist dies aged 65

Mr. King then used the Crimson software to examine how many posts in each category had later been censored.

WSJ: Watching How China Censors

Mr. King in 2007 co-founded Boston start-up Crimson Hexagon Inc.

WSJ: Watching How China Censors

Crimson Hexagon has already been using the software for which Mr. King received a patent in May to help companies understand the nuances of brand recognition via subscription and consulting services.

WSJ: Watching How China Censors