Major view
G major
Brightness rank 2/7 (bright)
Characteristic notes
- 7 = F# (leading tone, pulls home)
- 4 = C (the note that leans on the 3rd)
Key G major – E minor Chords G, D, Am, C Difficulty already in its easiest key
G D Am G D C G D Am Mama take this badge off of me G D C I can't use it any-more G D Am It's getting dark, too dark to see G D C I feel I'm knockin on heaven's door G D Am Knock, knock, knockin' on heaven's door G D C Knock, knock, knockin' on heaven's door G D Am Knock, knock, knockin' on heaven's door G D C Knock, knock, knockin' on heaven's door G D Am Mama put my guns in the ground G D C I can't shoot them any-more G D Am That long black cloud is comin' down G D C I feel I'm knockin' on heaven's door G D Am Knock, knock, knockin' on heaven's door G D C Knock, knock, knockin' on heaven's door G D Am Knock, knock, knockin' on heaven's door G D C Knock, knock, knockin' on heaven's door G D Am G
End of song Play again?
Harmony analysis
The song opens on G and ends on G. Its chords belong to both G major and Em, so every chord below is read both ways.
Major view
Brightness rank 2/7 (bright)
Characteristic notes
Minor view
Brightness rank 5/7 (leaning dark)
Characteristic notes
Which side does the ear lean to?
Our reading: to us the song feels closer to the G major side because it both starts and finishes on G and G is heard 20 times while Em never appears. That is an interpretation, not a rule — hearing the same chords from E minor is just as valid and teaches you something different.
Show the degrees above the chords — relative to G or to Em; comparing both readings is a practice of its own.
Every chord of the key, listed 1 to 7 separately for each key. Chords played in the song show how often they appear; chords from outside the scale sit next to their own degree.
| Degree | Chord | Role | Notes | In song |
|---|---|---|---|---|
| I | G | Tonic — home | G · B · D | 20× |
| ii | Am | Supertonic — prepares the dominant | A · C · E | 10× |
| iii | Bm | Mediant — a tonic-family shade | B · D · F# | — |
| III | B | Chromatic colour chordoutside the key | B · D# · F# | — |
| IV | C | Subdominant — moves away from home | C · E · G | 9× |
| V | D | Dominant — strongest pull home | D · F# · A | 19× |
| vi | Em | Relative minor — the melancholy side | E · G · B | — |
| vii° | F#dim | Leading-tone chord — tension | F# · A · C | — |
| Degree | Chord | Role | Notes | In song |
|---|---|---|---|---|
| i | Em | Tonic — home | E · G · B | — |
| ii° | F#dim | Supertonic — prepares the dominant | F# · A · C | — |
| III | G | Relative major — the bright side | G · B · D | 20× |
| iv | Am | Subdominant — moves away from home | A · C · E | 10× |
| v | Bm | Minor dominant — soft pull | B · D · F# | — |
| V | B | Dominant — borrowed from harmonic minor, pulls hard to the tonicharmonic minor | B · D# · F# | — |
| VI | C | Submediant — warm colour | C · E · G | 9× |
| VII | D | Subtonic — steps back to the tonic | D · F# · A | 19× |
The key pair is G major and its relative E minor (1 sharp). 4 different chords appear 58 times in total; 4 of them sit naturally inside the shared scale. Everything stays inside one scale, which is why the song is easy to follow by ear.
The move to watch is C → G, heard 9 times. From the G side it reads IV → I (plagal cadence: the soft 'amen' ending); from the Em side it is VI → III. Knowing where these arrivals fall helps you feel the phrasing and anticipate the next chord.
Empty slices are chords the song doesn't use.
The song is already written in its easiest key for guitar.
Starting on G, the song gives away its key from the very first bar. G, D, Am, C carry the song: I–V–ii–IV relative to G, III–VII–iv–VI relative to Em. No chord leaves the shared scale, so a single pentatonic shape works over the whole song. Keep an ear on C → G (IV → I in G, VI → III in Em): plagal cadence — the soft 'amen' ending. The final chord is G; the ear comes to rest in G.
This analysis is generated from the song's chords by akorculuk's harmony engine using consistent rules. When you change key, the degrees stay the same; only the chord names change.
Hover over or tap a chord in the lyrics for its shapes, its degree in both keys and a listen button. Here you have every chord of the song side by side.
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