In 1970 Frith and
John Greaves began developing a piece they later called "
Teenbeat". It became a collection of instrumental fragments and ideas the two had been working on. Some of these fragments took on a life of their own and evolved into free-standing compositions. One of them was Frith's "With the Yellow Half-Moon and Blue Star"; the other was "Ruins". On "Ruins" Frith used
Fibonacci numbers to establish beat and
harmony. He had been reading about Hungarian composer
Béla Bartók's use of the Fibonacci series and its 55-beat sequence to structure compositions. Fibonacci numbers are related to the
golden ratio found in some
patterns in nature; the numbers are also sometimes used in art and architecture. Frith said the idea of the
palindromic structure of
rhythmic patterns in the middle of the piece came from French composer
Olivier Messiaen. Frith
scored "Ruins" for violin, bassoon and xylophone to make it "somewhat classical-sounding", but later regretted having played violin "so badly" on the track. He wrote that "[n]either my violin nor my xylophone skills were remotely good enough to get it close to where it should have been." But he added that the "obvious deficiencies in the writing" were overcome by group's "energetic conviction" which revealed "unexpected qualities" in the work. Frith remarked, "it would be interesting to have another shot at it with [violinist]
Carla Kihlstedt", but added "I doubt if I'll ever have the energy or motivation to go that far". The recording of "Ruins" took place in stages because at the time the group had yet to familiarize themselves with the piece.
Chris Cutler later commented, "We should have delayed [
Unrest]. But we were sure the challenge would 'bring out the best' in us." Benjamin Piekut wrote in his 2019 book
Henry Cow: The World Is a Problem, "To this day, the Cows wince when they hear the flubs sprinkled throughout ['Ruins']." Part of the end of "Ruins", played at half-speed, also appears in "Deluge", the final track on
Unrest; the drums and bass have been removed and it fades in slowly, loops several times, then fades out again. "Ruins" was later remixed by
Tim Hodgkinson at Cold Storage Studios in London in 1984, and was released by
East Side Digital Records on the first CD release of
Unrest in 1991. All subsequent CD releases of
Unrest by East Side Digital and
Recommended Records restored the original mix. "Ruins" featured in many of Henry Cow's live sets. In early performances, for example in the 25 April 1974
John Peel Show, they often split the piece in two, playing the first part, jumping to Greaves' "Half Asleep; Half Awake", then returning to the last part of "Ruins". This was generally followed by Frith's "Bittern Storm over Ulm". The setlist of the Peel session is given as "Pidgeons:[
sic] Ruins/Half Awake Half Asleep/Bittern Storm Over Ulm". In a paper in
Representations, Piekut states that it is unclear whether "Pigeons" is the name of a suite of songs, "Ruins", "Half Asleep; Half Awake" and "Bittern Storm over Ulm", or an introduction to "Ruins" that does not appear on
Unrest. Piekut concluded that "Pigeons" may be neither of those two, but simply the working title of several song fragments the band had been working on at the time. ==Composition and structure==