Versatile poet and music producer co-founded King Crimson, produced Roxy Music’s debut album and had a long partnership with Greg Lake

Peter Sinfield, a co-founder of prog rockers King Crimson who went on to a successful pop songwriting career for artists such as Céline Dion, has died aged 80.

King Crimson announced the news, describing him as the band’s “original roadie, lyricist, lights operator and live sound engineer”. No cause of death was given.