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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.

“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.

The chord progression in the chorus of “Lost Cause” by Beck showcases a simple yet effective pattern utilizing major chords and a dominant seventh chord, which creates tension and resolution throughout the progression. The song is in C major, and the chords predominantly follow the diatonic harmony of the key. The style is reminiscent of folk and alternative rock, with the harmony playing a significant role in evoking a sense of melancholy in the listener.

“Idioteque” by Radiohead is an experimental and atmospheric electronic song, released on the album “Kid A” in 2000. The chord progression of the chorus is fairly simple, yet features some distinctive chords which create a sense of tension and release. It incorporates modal mixture and chromatic mediants, which are typical elements found in Radiohead’s music.

The chord progression in the chorus of Muse’s “Apocalypse Please” consists of a mix of diatonic chords and borrowed chords from the parallel major and minor keys. The progression features strong harmonic movement with a pivot modulation. Muse is known for their dramatic, often symphonic rock sound, and this progression is no exception in showing off their signature style. The progression also shares some similarities with other artists’ works in both structure and harmonic content.

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#’]