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The song “3 Libras Acoustic Live” by A Perfect Circle oscillates between an A major and a C# minor structure, with a D major introduced at the end of the progression. The dominant chords are A (represented as Asus2) and C# (represented as C#m). The final D chord can be seen as a modulation, adding a somewhat unexpected resolution that doesn’t adhere to the traditional rules of tonic-dominant resolution in either major or minor keys.

The song “The Outsider” by A Perfect Circle has a main key signature of E major, as indicated by the repeated occurrences of the chords B, A, and E. The overall structure is tonal, using chords common in Western music. Some elements of modality are observable though, with the use of the C chord, which in traditional music theory would be considered a borrowed chord from the parallel E minor scale. A sense of tension and release is created through the use of these non-diatonic chords, which ultimately helps to maintain the listener’s interest.

“Yesterday” by The Beatles showcases the innovative use of chord progressions that the group is known for. This song, unlike their other songs, includes borrowed chords and numerous secondary dominant chords. It also uses their favored approach of mixing chords from parallel major and minor scales, hence creating a ‘blended’ modal effect.

Moreover, it uses a mixolydian ♭7 in the main chord sequence, which is quite a popular trick among songwriters for shifting the tonic of a song.

“The Continuing Story of Bungalow Bill” features a verse in A minor with a brief but significant shift to F minor, due to the use of borrowed chords or modal mixture. Notably, it showcases The Beatles’ sophisticated approach to harmonization, utilizing unconventional chord progressions & modulations that are cyclical.

The chord progression in the verse of “Knights of Cydonia” by Muse features a mix of diatonic and borrowed chords, primarily from the G# minor and E major keys. The progression features an interesting blend of major and minor chords, chromatic movement, and modulation, contributing to the epic and powerful sound of the track.

A Perfect Circle – 3 Libras Acoustic Live – Verse

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Chord Progression

[‘Asus2’, ‘Asus2’, ‘Asus2’, ‘Asus2’, ‘C#m’, ‘C#m’, ‘C#m’, ‘C#m’, ‘Asus2’, ‘Asus2’, ‘Asus2’, ‘Asus2’, ‘C#m’, ‘C#m’, ‘D’, ‘D’]

Chord Progression Analysis

The chord progression can be segmented into two main parts:

1. Asus2 – Asus2 – Asus2 – Asus2 – C#m – C#m – C#m – C#m
2. Asus2 – Asus2 – Asus2 – Asus2 – C#m – C#m – D – D

And their respective Roman numerals:

1. Asus2 (IVsus2) – Asus2 (IVsus2) – Asus2 (IVsus2) – Asus2 (IVsus2) – C#m (vi) – C#m (vi) – C#m (vi) – C#m (vi)
2. Asus2 (IVsus2) – Asus2 (IVsus2) – Asus2 (IVsus2) – Asus2 (IVsus2) – C#m (vi) – C#m (vi) – D (♭VII) – D (♭VII)

Borrowed chords:
“`
C#m (vi)
D (♭VII)
“`

Similar Chord Progressions

One notable song with a similar chord progression is “Black” by Pearl Jam (in the key of E major):

Verse:
E – E – Aadd9 – Aadd9 – C#m – C#m – D – D

Chord/Roman numeral representation:
E (I) – E (I) – Aadd9 (IVadd9) – Aadd9 (IVadd9) – C#m (vi) – C#m (vi) – D (♭VII) – D (♭VII)

As with “3 Libras,” “Black” uses suspended and minor chords in its verse to create a dark, melancholic tone, and borrows the ♭VII from the parallel minor.

Musical Analysis

The extensive use of the Asus2 chord creates a sense of movement and unresolved tension in the piece. The frequent repetition of these specific chords contributes to that sense of movement and anticipation, which is then furthered by the unexpected turns to the C# minor and D major chords – borrowed chords from the parallel minor key.

Overall Analysis

The progression starts on the suspended II chord of the key, which anticipates resolution either to the tonic (E major) or the supertonic (F# minor). However, it instead moves to the dominant minor (C# minor), suggesting a borrowed chord from the parallel minor (E minor). The D major chord which concludes the progression is a borrowed II from E minor as well.

Style Analysis

“3 Libras” is characteristic of the alternative rock/post-grunge style of A Perfect Circle, particularly their exploration of darker harmonies and suspended tonality. The song’s style also incorporates elements of the progressive rock genre, demonstrated by its utilization of non-diatonic harmony and unusual chord progressions.

Chords in the Verse section of 3 Libras Acoustic Live by A Perfect Circle are:

[‘Asus2’, ‘Asus2’, ‘Asus2’, ‘Asus2’, ‘C#m’, ‘C#m’, ‘C#m’, ‘C#m’, ‘Asus2’, ‘Asus2’, ‘Asus2’, ‘Asus2’, ‘C#m’, ‘C#m’, ‘D’, ‘D’]