The difference, by ear
Rock in Opposition is the more austere and politically explicit continuation of the same jazz-rock impulse.
Both are sung cleanly, but Avant-prog / RIO swings further either way: 60 to 160 bpm against 90 to 150. To hear the difference, play Soft Machine next to Henry Cow. Both grew out of progressive rock, Canterbury scene first and Avant-prog / RIO ten years after.
In figures
Canterbury scene
Where it sits
Rock › Progressive rock › Canterbury scene
In short
Prog with jazz harmony and dry English humour. Looser and stranger than its symphonic neighbours.
How it sounds
- Jazz harmony - sevenths and ninths - in place of blues pentatonics.
- Fuzzed organ, the signature of Mike Ratledge in Soft Machine.
- Absurdist humour in the lyrics, in contrast with the complexity of the music.
Key acts
- Soft Machine
- Caravan
- Hatfield and the North
Start here
The pickCaravan - In the Land of Grey and Pink. Prog that doesn't take itself seriously, and lasts because of it.
Full page →Avant-prog / RIO
Where it sits
Rock › Progressive rock › Avant-prog / RIO
In short
Rock in Opposition: dissonance, chamber music and left-wing politics. Prog that refuses on principle to be pleasant.
How it sounds
- Systematic dissonance and harmony drawn from twentieth-century chamber music.
- Unusual acoustic instruments - bassoon, violin, harmonium - alongside rock.
- Rigorously composed structures, without improvisation or melodic concessions.
Key acts
- Henry Cow
- Univers Zero
- Art Bears
Start here
The pickUnivers Zero - Heresie. Closer to Bartók than to rock.
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