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Related Music Theory Alchemy

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.

“Glory Box” by Portishead is primarily in the key of D minor, with some moments of modal interchange. The chord progression contains a distinct spice of jazz influence while remaining in the realm of synthesized trip-hop sound characterizing the band’s style.

“Don’t Look Back in Anger” by Oasis is written in the key of C major. Although it largely conforms to the traditional progressions expected within this key, the song does feature some interesting variations in the form of borrowed chords coming from the parallel minor key (C minor) – a common technique used in pop and rock music.

“Something I Can Never Have” by Nine Inch Nails is a song with a dark and moody atmosphere. The chord progression in both the verse and chorus of the song features certain borrowed chords and chromatic tones that give the piece this distinctive quality. The song seems to be in the key of C Major, but certain chords from the parallel minor key (C Minor) are used to create a sense of tension and emotional turmoil.

The song “Viva La Vida” by Coldplay is in the key of G major and follows a fairly simple chord progression in the pop/rock genre. This progression particularly makes use of the I, IV, V, and vi chords in this key, which is a typical pop 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#’]