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Related Music Theory Alchemy

“Penny Lane” by The Beatles is an eclectic and elegant piece of music evident in its rhythm, harmony, melody, and lyrics. It is predominantly in the key of A Major, but it has several key changes and introduces chords that are non-diatonic, giving it a progressive and unexpected feel.

Taylor Swift’s “Black Dog” features a verse chord progression that is both simple and evocative, utilizing variations of the tonic chord to create a sense of movement and build tension before resolving into more straightforward chord changes. This kind of progression is characteristic of songs that aim to evoke a contemplative or narrative-driven mood, which is a frequent theme in Swift’s songwriting.

“Jolene” by Dolly Parton is a classic country song written in A minor. Its chord progression is an iconic reflection of the country and folk genres, and is a study of simplicity and effective songwriting.

The chord progression of “Jolene” uses primarily diatonic chords but also includes a borrowed chord which introduces a touch of complexity to the harmonic structure of the song.

“Weekend Wars” by MGMT features a distinctive and slightly unconventional chord progression. The verse is in D minor and consists of 22 chords, providing a unique and somewhat complex harmonic landscape. The majority of the chords used are diatonic, but there are also borrowed chords and other non-diatonic chords which contribute to the song’s unique character.

Chord Progression:
Dm (i), C (VII), G (IV), C (VII), G (IV), F (III), Dm (i), C (VII), F (III), Am (v), F (III), Dm (i), C (VII), G (IV), C (VII), G (IV), F (III), Dm (i), C (VII), F (III), Am (v), F (III)

Dm – D minor
C – C major
G – G major (borrowed chord)
F – F major
Am – A minor

The Beatles – Blackbird – Verse

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Chord Progression

[‘G’, ‘Am7’, ‘G/B’, ‘G’, ‘C’, ‘C#dim’, ‘D’, ‘D#(b5)’, ‘Em’, ‘Ebaug’, ‘D’, ‘Dbdim’, ‘C’, ‘Cm’, ‘G/B’, ‘A7’, ‘C/D’, ‘G’, ‘C’, ‘G/B’, ‘A7’, ‘C/D’, ‘G’, ‘C’, ‘G/B’, ‘A7’, ‘C/D’, ‘G’]

Chord Progression Analysis

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Verse:

Here’s the chord progression for the verse with full chord names.

“`
G (I) – Am7 (ii7) – G/B (I/III) – G (I))
C (IV) – C#dim (iv♯°) – D (V) – D#(b5) (♭V(b5)) – Em (vi) – Ebaug (vi♭(#5)) – D (V) – Dbdim (♭V°) – C (IV) – Cm (iv(minor) – borrowed chord from G minor)
G/B (I/III) – A7 (V7/ii) – C/D (IV/V) – G (I)
C (IV) – G/B (I/III) – A7 (V7/ii) – C/D (IV/V) – G (I) –
C (IV) – G/B (I/III) – A7 (V7/ii) – C/D (IV/V) – G (I)
“`

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Similar Chord Progressions

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One song with similar harmonic complexity is “Stairway to Heaven” by Led Zeppelin, which combines a variety of chords, similar to “Blackbird,” though this progression is not as chromatically active.

Verse Chord Progression:

“`
Am (i) – G#°/B# (vii°/VI) – C/D (VI/VII) – D/F# (VII/IX) – Fmaj7 (VI maj7) – Am (i) – G (VII) – Am (i)
“`
Also, “Daydream Believer” by The Monkees has a similar feel:

Verse Chord Progression:

“`
G (I) – D (V) – G (I) – Bm (iii) – Em (vi) – Am (ii) – D7 (V7) – G (I)
“`

Musical Analysis

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There are two main aspects of this chord progression that make it unique: its use of secondary dominants (A7), which function to temporarily tonicize a non-tonic chord (in this case the ii chord, Am), and its use of a borrowed chord from the parallel minor key (Cm). These elements contribute to the progression’s distinct sound.

The progression also does not follow a standard 4-chord loop commonly seen in pop/rock music of the time, but rather goes on a journey with several unique changes. Non-diatonic chords such as the D#(b5), Dbdim, and the Ebaug chords further disrupt the expected feel of the key.

Furthermore, the inversion of the primary G chord (G/B) gives a distinctive color to the progression.

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Overall Analysis

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“Blackbird” by The Beatles is a song mostly in the key of G Major. It’s known for its interesting guitar work and unconventional chord progression. The song employs a mix of functional and non-functional harmony, striking a balance between traditional diatonic harmony and more experimental harmonic ideas. The chord progression also includes several chromatic or borrowed chords (Cm, Dbdim, D# (b5), C#dim, and Ebaug).

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Style Analysis

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“Blackbird” is one of the Beatles’ more harmonic adventurous songs, showcasing their ability as innovators within the pop music realm. The combination of standard folk acoustic picking with rare and borrowed chords, as well as its irregular structure defying the typical verse-chorus form, sonically painting a landscape that is famously Beatles.

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Chords in the Verse section of Blackbird by The Beatles are:

[‘G’, ‘Am7’, ‘G/B’, ‘G’, ‘C’, ‘C#dim’, ‘D’, ‘D#(b5)’, ‘Em’, ‘Ebaug’, ‘D’, ‘Dbdim’, ‘C’, ‘Cm’, ‘G/B’, ‘A7’, ‘C/D’, ‘G’, ‘C’, ‘G/B’, ‘A7’, ‘C/D’, ‘G’, ‘C’, ‘G/B’, ‘A7’, ‘C/D’, ‘G’]