Idioteque

The harmony of 'Idioteque' is unusual even within Radiohead's catalogue: it is principally inherited from a pre-existing academic computer music piece rather than composed chord-by-chord. The looped four-chord phrase from Lansky's 'Mild und leise' provides a largely static tonal backdrop, and the track achieves its mounting dread through timbre, rhythm, and dynamics rather than harmonic motion. The most notable structural device is rhythmic — Yorke's 5/4 vocal loop against the 4/4 foundation in the second chorus creates genuine metric dissonance without altering the underlying harmony. The Tristan chord connection Lansky himself acknowledged adds an unlikely thread running from Wagner's late-Romantic chromaticism through Princeton computer music of the 1970s to Greenwood's modular synthesiser in a second-hand-record-shop discovery.

Jonny Greenwood initiated the track by constructing an electronic drum machine from modular synthesiser components — filters, oscillators, and modules similar to those available in 1970s electronic studios. Feeling the rhythm 'needed chaos', he turned to sampling and landed on the four-chord synthesiser phrase from 'Mild und leise', a computer music piece Paul Lansky had composed at Princeton University in 1973–74 on an IBM mainframe, later released on the 1976 compilation Electronic Music Winners. Greenwood had found that record in a second-hand shop while Radiohead were touring the US. The track also briefly samples another piece from that compilation, 'Short Piece' by Arthur Kreiger. Greenwood recorded roughly 50 minutes of improvisation and handed the tape to Thom Yorke, who extracted a 40-second section he described as 'absolute genius' and built the song around it. Yorke wrote the lyrics by cutting up phrases and drawing them from a hat, producing the track's fragmented, end-times imagery.

Released on Radiohead's Kid A (2000), 'Idioteque' fuses a four-chord phrase sampled from Paul Lansky's 1973 computer music piece with Jonny Greenwood's modular synth drum machine, stripping away all rock instrumentation to leave Yorke's fractured voice against relentless electronic percussion. Rolling Stone ranked it #48 on its '500 Greatest Songs of All Time' and named it one of the best songs of the decade alongside Pitchfork. It remains one of the clearest markers of where guitar-band rock ended and something more unsettling began.