King Crimson's previous album, ''
Larks' Tongues in Aspic'' (on which they had moved decisively away from a more traditional progressive rock sound drawing on American jazz, and towards the influence of European free improvisation), had been recorded by a quintet lineup including percussionist
Jamie Muir. Early in 1973, Muir abruptly left the band, ostensibly due to an onstage injury, but in fact to retire from music and join a monastery (something that was not communicated to his bandmates at that time).
Bill Bruford subsequently absorbed Muir's percussion role in addition to his own kit drumming, and the band continued to tour as a quartet. These upheavals and the pressure of touring left King Crimson short of new written material when it came to the time to record their next album. Having increased their level of onstage improvisation during recent tours, the band opted to take advantage of this to solve the problem. The other parts of this improvisation were released on the box set
The Great Deceiver as "The Law of Maximum Distress, Parts One & Two". "Trio", "Starless and Bible Black" and "Fracture", the last of which Robert Fripp has cited as one of the most difficult pieces he has ever played, were recorded live at the
Concertgebouw in Amsterdam. The introduction to "The Night Watch" was recorded at this same performance, but the band's
Mellotron broke down during the performance, meaning that the remainder of the song needed to be recorded in the studio. Live applause was removed from the recordings wherever possible. The complete Amsterdam concert was released in 1997 as
The Night Watch. Bruford spent the entirety of "Trio" with his drumsticks crossed over his chest, waiting for the right moment to join in, but eventually realized that the piece was progressing better without him. His decision not to add any percussion was seen by the rest of the band as a crucial choice, and so he received co-writing credit. "Trio" was later included on the 1975 compilation album ''
A Young Person's Guide to King Crimson'', the performance credits of which cite Bruford's contribution to the piece as "admirable restraint." The track "FraKctured" from the band's 2000 album
The ConstruKction of Light serves as a sequel to "Fracture". == Music and lyrics ==