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The song “Purple Rain” by Prince is a classic and showcases some interesting use of chord progressions. The key of the song is G major. The classic, popular music formula is present in the use of common chords like I, ii, IV, V which are all diatonic within the key. Noticeably, this song opts for a more simplistic, cyclical chord progression structure that emphasizes repetition of strong melodic lines.

“Kiss” is a funk, synthpop song written, produced and performed by Prince. The song’s structure runs around a simple, repeated two-bar eight-note pattern, but what’s odd is the song’s key. Dotting between E and D, it’s hard to pin down definitively, but the song seems to be written in the ambiguous key of E Mixolydian/D major.

“Since I’ve Been Loving You” is a blues-influenced rock ballad by Led Zeppelin. Its chord progression showcases the band’s eclectic mix of blues, rock, and jazz influences. The progression is characterized by a mix of diatonic and chromatically altered chords, reflecting a sophisticated understanding of harmony and emotional depth that is typical of Led Zeppelin’s music.

This is simply a repetition of the F major chord, played four times. This does not provide much variety or harmonic interest, but it might create a sense of stability and could be used to produce a strong tonal center.

The chord progression can be divided into three main sections (please see the details below). The first section is based around the I chord (C), the second section introduces the IV chord (F), then it returns to the I chord. The third section introduces a borrowed chord (bVII – Bb from C Mixolydian), a V chord (G), then returns to the I chord with a brief excursion back to the V chord. There is repetition in this section with the return to the I chord.

Prince – Purple Rain – Verse 3

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Chord Progression

[‘G’, ‘Em’, ‘D’, ‘C’, ‘G’, ‘Em’, ‘D’, ‘G’]

Chord Progression Analysis

Given the key of the song, the chord progression for Verse 3 is the following:

G Major (‘I’),
E minor (‘vi’),
D Major (‘V’),
C Major (‘IV’),
G Major (‘I’),
E minor (‘vi’),
D Major (‘V’),
G Major (‘I’).

There is no borrowed chord in this progression.

Similar Chord Progressions

1. The Beatles – “Let It Be”
[‘C’, ‘G’, ‘Am’, ‘F’, ‘C’, ‘G’, ‘F’, ‘C’]
(This can be transposed to the G Major scale as [‘G’, ‘D’, ‘Em’, ‘C’, ‘G’, ‘D’, ‘C’, ‘G’]):

G Major (‘I’),
D Major (‘V’),
E minor (‘vi’),
C Major (‘IV’),
G Major (‘I’),
D Major (‘V’),
C Major (‘IV’),
G Major (‘I’).

2. Green Day’s “When I Come Around”
[‘G’, ‘D’, ‘Em’, ‘C’]

G Major (‘I’),
D Major (‘V’),
E minor (‘vi’),
C Major (‘IV’).

Please note that while these are similar, they provide different emotional effects due to the ordering and repetition of the chords.

Musical Analysis

The chosen progression of Prince for the verse 3 provides a strong sense of movement yet a familiar and comforting feeling to the listeners. The I-vi-V-IV is one of the most common chord progressions in pop music, often associated with a nostalgic or plaintive mood.

The return to the I chord (G Major) several times within the progression creates a home base for the song, reassuring the listener even as the music explores different emotional territories with the minor vi chord (E minor) and major IV and V chords (C and D Major).

Overall Analysis

Prince’s “Purple Rain” is a classic power ballad, rooted deeply in pop and rock genres. The chord progressions, with particular emphasis on the one given in Verse 3, underlines Prince’s lyricism and craft, showcasing his unique ability to blend seemingly simple chord progressions to evoke emotional and profound moods. The key of the song is G major.

Style Analysis

The chosen chord sequence of Prince for “Purple Rain” reflects basic tropes of pop and rock, where four-chord progressions reign supreme. The progression has a melancholic, almost nostalgic feeling, fitting perfectly with the theme of lost love in the song. The poignant lyrics combined with the chord progression create a deep emotional experience for the listener.

Chords in the Verse 3 section of Purple Rain by Prince are:

[‘G’, ‘Em’, ‘D’, ‘C’, ‘G’, ‘Em’, ‘D’, ‘G’]