Music Theory Alchemy

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“Sour Times” by Portishead is characterized by dark, brooding sounds and melancholic melodies that gives the song its distinct feel, largely due to the specific chord progression that is used throughout the song. Written in the key of E major, the song makes use of a diverse selection of chords that offers a wider blend of harmonic options to navigate through different moods and tonal landscapes.

“It’s A Fire” by Portishead is a song characterized by its frequent modulations and use of borrowed chords, making it a considerable complexity in terms of harmony. It features transition from key centers and borrowed chords from other keys, which creates tension and resolution creating the signature moody and intense atmosphere Portishead is known for.

The progression from B to A to E is a common progression in pop and rock music. This progression utilizes diatonic and non-diatonic chords, meaning that the chords all belong to the same key and it suggests the use of borrowed chords. A Perfect Circle tends to use a lot of downward motion in their chord progressions, moving from higher to lower pitches, which can give their music a distinct ‘heavy’ feel.

The chord progression in Muse’s Hysteria (verse 2) is a fairly unique progression that revolves around a minor tonality with some hints of E7 acting as a secondary dominant. It seems to have an ambiguous key center, fluctuating between E minor and A minor. The progression is repeated, providing a sense of tension and familiarity throughout the verse.

“Brown Sugar” by The Rolling Stones, off their 1971 album Sticky Fingers, is in the key of C major, and primarily uses the chords C, F, G and Bb. This song showcases the band’s blues rock influences, built on a repetitive, riff-driven chord progression. The use of I, IV, V, and a borrowed bVII (Bb), which is common in the blues, creates an appealing and familiar sound, helping the song resonate with listeners.

Portishead – Sour Times – Verse 2

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Chord Progression

[‘C#m’, ‘C’, ‘E/B’, ‘E/G#’, ‘C#m’, ‘C’, ‘E/B’, ‘E/G#’, ‘C#m’, ‘C’, ‘E/B’, ‘E/G#’]

Chord Progression Analysis

– C# minor (i)
– C major (bVI)
– E major over B (V/III)
– E major over G# (V/vi)

“`markdown
C# minor – the tonic chord, or ‘home’ chord, in the key of C# minor.
C major – a borrowed chord from the parallel major key (C# major), also known as the ‘Picardy third’.
E major over B, E major over G# – inverted V chords that provide strong resolution back to the tonic, adding interest with different bass notes.
“`

Similar Chord Progressions

A chord progression somewhat similar to this can be found in Radiohead’s “Exit Music (For a Film)”, which also makes use of mode mixture and chromaticism:

– A minor (i)
– G major (bVII)
– E minor over B (v/III)
– C major over G (bIII/VI)

Such unconventional chord progressions can also be found in songs by bands such as Massive Attack and Björk, who are also pioneers of the trip-hop genre.

For example, Massive Attack’s “Teardrop” uses a progression that also features modal interchange and a chromatic descending line:

– F# minor (i)
– F major (bVI)
– D# minor over B (vii/iii)
– A# minor over G# (iv/VI)

These examples show the innovative and intricate blending of elements from jazz, funk, and electronica characteristic of the trip-hop genre.

Musical Analysis

C# minor is the tonic or home chord of this progression. The C major that follows is a borrowed chord from the parallel major key (C# major); this is an example of mode mixture or modal interchange, where chords from a parallel key are used to increase the harmonic interest of a piece.

The E over B and E over G# are inversions of the E major chord, which is the dominant (V) in the key of C# minor. The changing bass note—first B, then G#—creates smooth voice leading and adds harmonic interest.

Overall Analysis

“Sour Times” by Portishead is largely written in the key of C# minor, with elements of modal interchange and chromaticism that contribute to its haunting, dark sound. The song exhibits a remarkable amount of harmonic complexity and non-diatonic harmony, which is a defining characteristic of the trip-hop genre. The piece makes use of intricate inversions and chromatic voice leading, along with a frequent use of sevenths and diminished chords for added tension.

Style Analysis

“Sour Times” is a prime example of trip-hop, a genre known for its fusion of hip hop, electronica, and jazz. This is reflected in its complex harmonic structure and use of non-diatonic chords. The progression creates a moody, introspective atmosphere often associated with the genre. The chord progression’s dark tone and chromatic elements help to establish the tense, somber mood that is characteristic of Portishead’s music.

Chords in the Verse 2 section of Sour Times by Portishead are:

[‘C#m’, ‘C’, ‘E/B’, ‘E/G#’, ‘C#m’, ‘C’, ‘E/B’, ‘E/G#’, ‘C#m’, ‘C’, ‘E/B’, ‘E/G#’]