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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.

“The Rip” by Portishead is a classic example of the Trip-hop genre. It features simple, yet effective harmonic progressions that offer a melancholic tone which is widely utilized in this genre. The distinctiveness of this particular chord progression lies on its subtle shifting between minor and major tonalities, as well as its use of borrowed chords.

Verse 1

The chorus of Muse’s “Hysteria” displays a mix of chords from the key of C Major and borrowed chords from the parallel minor key (C minor). The chord progression uses a combination of functional harmony mixed with chromatic elements, embodying characteristics of both rock and classical genres.

The chorus of “Closer” by Nine Inch Nails is built around a progression that oscillates between a single major chord, F, and a single minor seventh chord, Cm7. This is quite minimalistic. Major chords usually have a happy, positive feel, while minor chords induce a somewhat sad, introspective mood. The use of C minor 7th gives a particular color to the progression: it’s a minor chord with an added minor seventh, which means it’s a bit less stable than a regular minor chord.

The chord progression in the chorus of “Hoppipolla” by Sigur Rós can be considered as being in the key of B Major, featuring a mixture of diatonic and borrowed chords. The progression shows Sigur Rós’ signature atmospheric and emotive style, utilizing various harmonic techniques to create a lush chord progression.

Portishead – Its A Fire – Chorus

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Chord Progression

[‘F#’, ‘C#’, ‘B’, ‘F#’, ‘C#’, ‘B’, ‘F#’, ‘C#’, ‘B’, ‘F#’, ‘C#’]

Chord Progression Analysis

We can say the song is in the key of F# Major, but the presence of chromatically foreign chords suggest a modal interchange behavior, where chords are borrowed from the parallel minor key. Here is the analysis of the chorus:

Chord progression: F# Major (I), C# Major (V), B Major (IV), repeated three times.

By examining the rest of the chords listed in the song, it seems that the verses and bridge sections may incorporate elements of modal interchange, borrowing chords from various modes.

Here is the processed chord progression in Roman Numerals formatted as requested:

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Similar Chord Progressions

In terms of style, the chord progression is a characteristic of Portishead’s affinity for blending elements of electronica, trip-hop, and jazz. Their unique blend of these oh-so-different styles creates an eerie, yet beautiful soundscape. The repeated chord progression in the chorus allows for the vocalist’s melody to weave in and out of the harmony, giving a spectral and ethereal quality to the piece.

Musical Analysis

F# Major (I)
C# Major (V)
B Major (IV)
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Overall Analysis

“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.

Style Analysis

The chord progression F# – C# – B is peculiar and rich, with a traditional sense of movement. The I-V-IV progression provides a strong, familiar sound, with a bit of uniqueness due to the interesting ending on the IV chord.

Together, the chords provide a melancholic and soulful atmosphere. The C# Major chord is particularly striking, demonstrating a modulation or accidental borrowing that heightens the emotive quality of the song. The song makes use of diatonic and non-diatonic chords, creating a rich harmonic landscape.

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

[‘F#’, ‘C#’, ‘B’, ‘F#’, ‘C#’, ‘B’, ‘F#’, ‘C#’, ‘B’, ‘F#’, ‘C#’]