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Related Music Theory Alchemy

The song “Penny Lane” written by the Beatles is in the key of A major. The structure of Verse 4, specifically, has a very effective use of both diatonic (belonging naturally to the key) and borrowed chords (taken from a different key or mode). They have incorporated secondary dominants, pivot modulation, and modal interchange which reflect their knowledge of musical theory and compositional skills.

“Girl” by The Beatles is a classic example of their use of chromatic harmony and modal interchange. The chord progression shows complexity in both its chord choices and structure, a distinguishing feature in much of their music. By closely examining this piece, we can better understand The Beatles’ harmonic technique where they blend the techniques of classical music (like chromaticism and harmonic diversity) with pop songwriting.

Taylor Swift’s “Black Dog” features a chorus that uses a sophisticated and intricate chord progression to drive the emotional depth and thematic elements of the song. This progression combines inversions and extensions to create a layered and textured musical atmosphere, reflecting the complexity of the song’s lyrics and enhancing its reflective nature.

“Wild Horses” by The Rolling Stones is a rock ballad with a minor tonality and is composed in the key of G major. The song incorporates the use of modal interchange, more commonly referred to as borrowed chords, from the parallel minor. This common technique in rock music contributes to the melancholic and emotionally resonant feeling of the song.

“Closer” by Nine Inch Nails is a song in the key of B minor, although it freely borrows chords from the parallel major key. The song’s structure is as follows: Verse – Pre-Chorus – Chorus – Verse – Pre-Chorus – Chorus – Bridge – Chorus – Instrumental.

The Beatles – Penny Lane – Chorus

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Chord Progression

G, Bm, C, G, Bm, C, G, Bm, C, E7

Chord Progression Analysis

Here, we will analyze the given section of the chorus against the context of the key of A major:

G Major: bVII
B Minor: ii
C Major: bIII
G Major: bVII
B Minor: ii
C Major: bIII
G Major: bVII
B Minor: ii
C Major: bIII
E7: V/vi

The above chords contains borrowed chords which are chords borrowed from the parallel minor key, In the key of A major, the parallel minor is A minor. So, the G and C chords are borrowed from A minor.

Here’s the line with borrowed chords written in code block:

G Major (bVII), C Major (bIII)

Similar Chord Progressions

The Beatles’ use of borrowed chords and key changes was influential and can be seen in many songs by other artists. For example, the Beach Boys’ “God Only Knows” uses similar techniques. In particular, “Uncle Albert/Admiral Halsey” by Paul McCartney also utilizes a similar style of chord borrowing and modulations.

Chord progression in these songs:

“God Only Knows” by The Beach Boys:

C (I), E7 (V/vi), F (IV), D (bII)

“Uncle Albert/Admiral Halsey” by Paul McCartney:

G (I), E7(V/vi), A7 (dominant V)

Musical Analysis

Notably, the primary chords in the progression (G and C) are not part of the A major scale. “Penny Lane” is characteristically Beatles-esque in its use of unexpected chord movements and key changes, which add intrigue to the piece without making it sound disjointed or random. The use of the V/vi (E7) chord as a pivot to transition between key areas is very nicely done and is an excellent example of the Beatles’ clever songwriting.

Overall Analysis

“Penny Lane,” written by the Beatles, utilizes key changes and borrowed chords to create an interesting and complex tonal palette. The song is best understood to primarily be in the key of A Major; however, it frequently borrows chords from the parallel minor key, uses unexpected dominant chords, and briefly modulates to other key areas for color and variety. This is characteristic of several Beatles songs, and it’s one of the ways they added complexity to their music while still remaining accessible.

Style Analysis

“Penny Lane” is characterized stylistically by its lush arrangements, complex harmonies, and stylistic mixture of traditional ‘pop’ songwriting, classical influence (particularly Baroque), and modern recording techniques. The section of the chorus analyzed here exemplifies this, with the borrowed chords adding unexpected color to the progression and the E7 resolving back to the home key in a satisfying manner.

Chords in the Chorus section of Penny Lane by The Beatles are:

G, Bm, C, G, Bm, C, G, Bm, C, E7