Ever curious as to how the form of Beatles songs evolved over the course of the legendary band’s career? Charting The Beatles is a site that “[explores] graphic studies of the band’s evolution,” and one of their topics of interest is the evolution The Beatles’ compositional style.

Dividing each song into sections (verse, chorus, bridge, intro/outro, and “other”) and assigning them to colors, Charting The Beatles unveils each of the band’s albums’ “structural identity.”

The site sorts the albums in chronological order, then within each album, each song can be expanded to reveal notes about the song’s structure from Alan W. Pollack’s “Notes on…” series.

Take a look below to see how the Charting The Beatles’ study on the forms of Beatles songs works.

An overview of each Beatles album’s structure.

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Structure of A Hard Day’s Night

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Note on the structure of “Lucy in the Sky With Diamonds”

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Note on the structure of “Ob-La-Di, Ob-La-Da”

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Head to Charting The Beatles to see the entire chart, as well as for their other fascinating studies of The Beatles’ expansive catalog.

(Charting The Beatles)