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Related Music Theory Alchemy

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“Sour Times” by Portishead is a song with a complex and intriguing chord progression. It blends minor key tonality with modulations and chromaticism to give it a mysterious and brooding atmosphere. The song is primarily in the key of C# minor and features some borrowed chords and inversions that color the overall progression.

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The “Glory Box” by Portishead chorus progression is based in D minor and moves between this primary D minor chord and three other chords: Dm/C, Bm7b5, and Bbmaj7. The Dm/C chord is the same as the D minor, but with a different note in the bass (C). The Bm7b5 is a half-diminished chord. The Bbmaj7 is major seventh chord.

The song ‘Zombie’ by The Cranberries is in the key of E minor. Its defining characteristics include plaintive repeated melodies, an intense grunge-inspired arrangement, and Dolores O’Riordan’s iconic vocal embellishments. The song employs a common rock/pop chord progression with added tension by using the D/F# chord.

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Given by the chords you’ve provided, it appears the song “Today” by The Smashing Pumpkins is primarily in the key of D Major with occasional borrowed chords from D minor and E minor. The varying uses of D Major, D minor, and E minor really showcase the variety in Billy Corgan’s guitar writing.

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The chorus of the Pink Floyd song “Breathe” features a mixture of diatonic and non-diatonic chords and creates a dreamy, spaced-out mood. The combination of major and minor seventh chords, as well as dominant 7th chords with altered 9ths, contributes to this atmospheric quality.

Portishead – Sour Times – Chorus 2

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Chord Progression

[‘F#m7’, ‘Emaj7’, ‘D#7’, ‘F#m7’, ‘Emaj7’, ‘D#7’, ‘F#m7’, ‘Emaj7’, ‘D#7’, ‘F#m7’, ‘Emaj7’, ‘D#7’, ‘C#m’]

Chord Progression Analysis

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F#m7 (II7), Emaj7 (Imaj7), D#7 (VII7), F#m7 (II7), Emaj7 (Imaj7), D#7 (VII7), F#m7 (II7), Emaj7 (Imaj7), D#7 (VII7), F#m7 (II7), Emaj7 (Imaj7), D#7 (VII7), C#m (i)
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The chords D#7 and Emaj7 can be considered borrowed chords from C# major and C# harmonic minor respectively.

Similar Chord Progressions

A song featuring a somewhat similar progression (though not entirely alike) is “Creep” by Radiohead. Its verse progression of I III IV iv in the key of G has a similar melancholic feel and borrowed chords IV iv from the parallel minor.

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Creep (Radiohead): G (I), B (III), C (IV), Cm (iv)
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Musical Analysis

In essence, the repetition of the II – I – VII progression gives the chorus its unique shade. The F#m7 to Emaj7 involves a common step downward that maintains fluidity. However, D#7 to F#m7 ascension brings tension before the cycle repeats. This progression spotlights the “back-and-forth” dramatic effect which inherently fits the expressive values of the trip-hop genre. And the final C#m re-affirms the root of the song, providing a calming resolution.

Overall Analysis

The song, “Sour Times” by Portishead, is in the key of C# minor. The chord progression of the chorus that you’ve provided swings between three chords (F#m7, Emaj7, D#7) four times before ending on a C#m chord. It suggests a II – I – VII progression in the chorus, which is rare and distinctive in contemporary music genres. This choice of chord progression creates a mysterious, dark, and contemplative mood, characteristic of the trip-hop genre that Portishead propounds.

Style Analysis

Portishead’s style is often categorized as trip-hop, and this song embodies the atmospheric, melancholic nature of the genre. There’s an existential, moody quality to the sound, no doubt enforced by the unusual II – I – VII progression. The use of 7th chords lends a jazzy, sophisticated aura to the music, which blends well with the drum beats typical of the trip-hop style.

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

[‘F#m7’, ‘Emaj7’, ‘D#7’, ‘F#m7’, ‘Emaj7’, ‘D#7’, ‘F#m7’, ‘Emaj7’, ‘D#7’, ‘F#m7’, ‘Emaj7’, ‘D#7’, ‘C#m’]