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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.

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.

“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.

The song “I Will” by The Beatles is an example of their unique and sophisticated approach to pop songwriting, demonstrating their comprehensive mastery of harmony within the pop idiom. The majority of the harmonies used in the song are diatonic to the key of C major, however there are several instances of borrowed chords that add color and complexity to the song’s overall harmonic structure.

The song “The Outsider” by A Perfect Circle frequently uses the chord progression [‘B’, ‘B’, ‘A’, ‘E’] in the key of E major. When viewing the chords through the lens of E major we can identify the chord progression as ii, ii, V, I. Furthermore, It shows some interesting harmonic decisions throughout. Most notably, the band makes use of borrowed chords which are chords taken from the parallel minor (in this case E minor). Here, the borrowed chords include A major and C major.

Roads

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All Analyses by Song

“Roads” by Portishead is set in the key of Am, also known as A minor. In the verse, there is an interesting use of the flat major 7 (Fmaj7) chord. This chord is not typically found within the natural minor key but is considered a borrowed chord from the A major key. Thus, this use of said borrowed chord and its resolution to the E7 dominants gives the song a unique feel, contributing to its mesmerizing and emotive ambience. Portishead tends to blend the use of A minor and A Dorian modality in their music, especially apparent in this composition.

The song “Roads” by Portishead features a haunting yet melodic chord progression reminiscent of the minor key-oriented pop/rock of the 90’s. It combines chords from the key of A minor along with a borrowed chord from the parallel major key to create a moody, atmospheric soundscape typical of the trip-hop genre.