Peter Sinfield, Lyricist for King Crimson, Dies at 80

Peter Sinfield, whose mystical and at times politically pointed lyrics for the British band King Crimson became emblematic of the progressive rock movement of the 1970s, died on Nov. 14 in London. He was 80.

His death was announced on the website of DGM, the record label founded by the King Crimson mastermind and virtuoso guitarist Robert Fripp, along with David Singleton. The statement did not say where Mr. Sinfield died or cite a cause, but it noted that he “had been suffering from declining health for several years.”

Mr. Sinfield, who once referred to himself as the band’s “pet hippie,” linked up with Mr. Fripp in 1968 after living an itinerant life in Spain and Morocco. He was the lyricist on the first four King Crimson albums, starting with “In the Court of the Crimson King” in 1969, which is widely regarded as the first album in the genre that came to be known as prog rock.

But his role was varied. He also helped produce King Crimson’s albums and worked as a roadie, lighting operator and sound engineer and, as art director, oversaw the band’s album covers. He even came up with the name of the band, plucked from his lyrics for the song “The Court of the Crimson King.”

“I was looking at things like Led Zeppelin, the Who — I could see that it had to be something powerful,” Mr. Sinfield recalled in a 2012 video interview. “And I thought, actually, if we just take it from the song and just call it King Crimson, that’s pretty powerful. And it isn’t the Devil. It isn’t Beelzebub, but it’s arrogant, and it’s got a feeling of darkness about it.”