Pyramid Song

The harmony of Pyramid Song is defined by its circular, non-functional nature. Instead of progressing toward a goal, the chords oscillate between the tonic (F#m) and the flattened supertonic (Gmaj7), creating a sense of 'cyclical time' mentioned by Thom Yorke. The rhythmic phrasing—often analyzed as a 3+3+4+3+3 subdivision of 8/8 or 4/4—disguises the simplicity of the four-chord loop. The use of A6 as the third chord introduces a Dorian-like brightness that is immediately suppressed by the return of the Phrygian G natural. This lack of a perfect cadence (V-I) contributes to the song's 'underwater' and suspended atmosphere.

Thom Yorke wrote the song on a grand piano at his home in Cornwall during the same week he composed 'Everything In Its Right Place.' He noted that the chords involve many 'black notes' but described the structure as simple. While he converted 'Everything In Its Right Place' to synthesizer, he felt 'Pyramid Song' sounded better as an untreated piano piece. Jonny Greenwood described the arrangement process as a challenge to enhance Yorke's original solo performance without diminishing its quality.

Serving as the lead single for Amnesiac, this track marked Radiohead's return to traditional releases following the experimental Kid A sessions. It features an arrangement of strings recorded in a medieval abbey and signature Ondes Martenot wails.