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Related Music Theory Alchemy

“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.

“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.

“Creep” by Radiohead is a song that features a well-known four-chord progression throughout the verses. This progression is G – B – C – Cm, which is often considered one of the factors that contribute to the song’s memorable and emotional quality. The chord progression helps create a melancholic and haunting atmosphere in the song. This song is notably influenced by alternative rock and grunge styles from the early 90s.

The Wind Cries Mary by Jimi Hendrix is a classic rock ballad written in the key of F major, based around a somewhat simple, yet effective, chord progression. There are a few borrowed chords and modulations that add to the harmonic complexity and characteristic guitar work by Hendrix. The song’s structure consists of a verse, followed by a brief pre-chorus, and a chorus before repeating.

“Castles Made Of Sand” is a song by Jimi Hendrix, featured on the 1967 album “Axis: Bold as Love.” The chord progression in the verse is notable for its use of both diatonic and chromatic chords, creating a complex harmonic structure that reflects the intricate guitar work and emotive lyrics of the song.

Portishead – Its A Fire – Verse 1

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Chord Progression

[‘Gsus4’, ‘G’, ‘Bm’, ‘D’, ‘F’, ‘Gsus4’, ‘G’, ‘Em’, ‘G’, ‘Em’, ‘G’, ‘F’, ‘E’]

Chord Progression Analysis

Chord Progression: [‘Gsus4’, ‘G’, ‘Bm’, ‘D’, ‘F’, ‘Gsus4’, ‘G’, ‘Em’, ‘G’, ‘Em’, ‘G’, ‘F’, ‘E’]

Translating chords to Roman Numerals (Assuming G Major as our key):

Gsus4 (Isus4)
G (I)
Bm (iii)
D (V)
F (♭VII / a borrowed chord from G minor)
Gsus4 (Isus4)
G (I)
Em (vi)
G (I)
Em (vi)
G (I)
F (♭VII / a borrowed chord from G minor)
E (vi / a borrowed chord from G minor)

“`
Full Chord name (‘Roman Numeral)
Gsus4 (Isus4)
G (I)
Bm (iii)
D (V)
F (♭VII)
Gsus4 (Isus4)
G (I)
Em (vi)
G (I)
Em (vi)
G (I)
F (♭VII)
E (VII)
“`

Similar Chord Progressions

The chromaticism and complex harmonic structures in “It’s A Fire” bear similarities to those found in many works of Radiohead, especially “Paranoid Android,” and in some of the darker pieces of David Bowie such as “Life on Mars.”

Radiohead – Paranoid Android:
[‘Em’, ‘G’, ‘B’, ‘D’, ‘C’, ‘F#’, ‘Em’, ‘G’, ‘Am’, ‘Em’, ‘G’, ‘Am’, ‘C’, ‘B’]

David Bowie – Life on Mars:
[‘F’, ‘Em’, ‘Dm’, ‘F’, ‘G’, ‘Bb’, ‘Am’, ‘Bb’, ‘Dm’, ‘Em’, ‘A’, ‘Dm’, ‘Em’, ‘F’].

Note: For the purpose of this analysis, assume that these songs are in the keys of E minor and F major, respectively.

Musical Analysis

The use of suspended chords and borrowed chords in this song suggests a sense of emotional ambiguity, shifting between tension and release. Additionally, the resolution from Gsus4 to G creates a tension-release pattern that gives a color characteristic of Portishead’s style.

Overall Analysis

The song “It’s A Fire” by Portishead features complex harmonic structures, distinguished by a fusion of pop, rock, and elements of jazz harmonies. The band, known for their trip-hop style, employ chromatically richer harmony and non-diatonic chord progressions in this piece. The chord progression of ‘It’s A Fire’ is consistent with this approach as we see the frequent use of suspended and minor chords alongside major ones, which creates a sense of unresolved tension. Borrowed chords, usually taken from the parallel minor or major key, are also used frequently to add stylistic color to the harmony.

Style Analysis

Portishead is known for their unique fusion of electronic music, hip hop beats, and jazz elements, a style often referred to as trip hop. Their use of complex chord structures, borrowed chords, and non-diatonic harmonies is consistent with the genre’s mood-setting characteristics, offering an intricate texture and emotional depth that’s distinguishing of their style.

Chords in the Verse 1 section of Its A Fire by Portishead are:

[‘Gsus4’, ‘G’, ‘Bm’, ‘D’, ‘F’, ‘Gsus4’, ‘G’, ‘Em’, ‘G’, ‘Em’, ‘G’, ‘F’, ‘E’]