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Related Music Theory Alchemy

“Glory Box” by Portishead from the album Dummy (1994) presents a haunting and somewhat melancholy ambience commonly found in their trademark trip-hop style. This song, in particular, draws from a palette of jazz-influenced harmony. The chords used, their extensions, and inversions, conjure complexity beyond basic triadic harmony. The chord progression listed appears to be in the key of D minor and employs common jazz techniques like ii-V-I progressions and usage of the half-diminished chord.

“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.

Vance Joy’s “Riptide” is a remarkably simple yet highly effective song written in the key of C Major. The song follows a repetitive I-vi-IV chord progression, which is only varied in the bridge where a minor seventh chord introduces tension before leading back to the song’s major tonality.

The song “Yesterday” by The Beatles is in the key of F major and spans chord I to VI. It is characterized by a deeply expressive melody and distinctive harmony. The chord progression seems simple, yet it makes full use of secondary dominants, borrowed chords, and subtly shifting tonal centers for narrative, which is a trademark of The Beatles’s songwriting style.

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 – Glory Box – Chorus

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Chord Progression

[‘Dm’, ‘Dm/C’, ‘Bm7b5’, ‘Bbmaj7’, ‘Dm’, ‘Dm/C’, ‘Bm7b5’, ‘Bbmaj7’, ‘Dm’, ‘Dm/C’, ‘Bm7b5’, ‘Bbmaj7’, ‘Dm’]

Chord Progression Analysis

“`
Dm (‘i’)
Dm/C (‘i with VII in the bass’)
Bm7b5 (‘vi half-diminished’)
Bbmaj7 (‘♭VI Major 7’)
Dm (‘i’)
Dm/C (‘i with VII in the bass’)
Bm7b5 (‘vi half-diminished’)
Bbmaj7 (‘♭VI Major 7’)
Dm (‘i’)
Dm/C (‘i with VII in the bass’)
Bm7b5 (‘vi half-diminished’)
Bbmaj7 (‘♭VI Major 7’)
Dm (‘i’)
“`

Similar Chord Progressions

1. Radiohead’s “Exit Music (For A Film)” also utilizes a minor to major seventh movement, though in a different key:
“`
Am (‘i’)
E (‘V’)
G (‘♭VII’)
Dmaj7 (‘IVmaj7’)
“`

2. Billie Eilish’s “when the party’s over” uses a similar pattern to start, moving from minor to half-diminished:
“`
Fmaj7 (‘I’)
Fm7 (‘i’)
G7 (‘V’)
Fmaj7 (‘IV’)
“`

Musical Analysis

This progression is quite intriguing, utilizing a mixture of chord types – minor, half-diminished, and major seventh – that adds considerable depth to the piece. This progression does not follow a typical pop/rock pattern but rather leans into Portishead’s characteristic trippy, brooding style. The chord transitions smoothly thanks to common tones and stepwise movement in the bass.

Overall Analysis

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.

Style Analysis

Portishead is known for their unique, cinematic blend of styles known as trip-hop, which marries elements of jazz, rock, hip-hop, and electronic music. The unusual chord progression in “Glory Box” helps create the moody, atmospheric sound that defines this song and much of their work. The progression’s focus on dark, minor chords and half-diminished chords highlights their jazz influences, while the bass movement underscores the rhythmic drive found in hip-hop and electronic music.

Chords in the Chorus section of Glory Box by Portishead are:

[‘Dm’, ‘Dm/C’, ‘Bm7b5’, ‘Bbmaj7’, ‘Dm’, ‘Dm/C’, ‘Bm7b5’, ‘Bbmaj7’, ‘Dm’, ‘Dm/C’, ‘Bm7b5’, ‘Bbmaj7’, ‘Dm’]