Attack of the Killer Queen – Intro and Verse
Attack of the Killer Queen – Verse and Pre-Chorus
Attack of the Killer Queen – Chorus
Attack of the Killer Queen – Chorus Lead-Out
Attack of the Killer Queen – Pre-Outro
Related Music Concepts
Inverted Chords
Using a different bass note to change a chord's sound
Diminished Chords
A chord built from stacked minor thirds — dark and unstable
Half-Diminished Chords
A diminished triad with a minor seventh on top — softer than fully diminished
Seventh Chords
Adding one more note to the basic chords
Suspended Chords
A chord with built in tension and release
Add Chords
A chord with an added tone that enriches its sound
Borrowed Chords
Using chords from parallel modes for contrast and emotion
Bassline Motion
How much the bass moves stepwise between chord roots
Secondary Chords
Chords that temporarily shift the harmonic center
Fully Diminished 7ths
A four-note diminished chord that strongly pulls toward resolution
Altered Chords
Altered (raised or lowered) notes create tension and complexity in chords
Chord-Melody Tension
How much the melody clashes with the underlying chords
Song Stats
●
Key
A Minor
Tempo
144 BPM
Meter
4/4
Genre
Video Game
Melody Range
G4 – G5
Mood
Complex, Unexpected, Upbeat, Moody
Most Used Chord
V
Chord Complexity
81
Chord Complexity: Tracks when a song goes beyond simple three-note chords—either by adding extra tones (like 7ths or add9s) or by borrowing notes from outside the key—creating richer, more sophisticated harmonies.
Melodic Complexity
79
Melodic Complexity: Reflects two factors: the use of notes outside the key and rhythmic syncopation, together capturing how intricate or surprising a melody feels.
Chord-Melody Tension
52
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
82
Chord Prog. Novelty: Measures how uncommon a song's chord changes are compared to others in the Hooktheory database, highlighting progressions that deviate from typical patterns.
Song Stats
●
Key
A Minor
Tempo
144 BPM
Meter
4/4
Genre
Video Game
Melody Range
G#4 – D6
Mood
Tense, Complex, Upbeat, Moody
Most Used Chord
V
Chord Complexity
72
Chord Complexity: Tracks when a song goes beyond simple three-note chords—either by adding extra tones (like 7ths or add9s) or by borrowing notes from outside the key—creating richer, more sophisticated harmonies.
Melodic Complexity
90
Melodic Complexity: Reflects two factors: the use of notes outside the key and rhythmic syncopation, together capturing how intricate or surprising a melody feels.
Chord-Melody Tension
71
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
49
Chord Prog. Novelty: Measures how uncommon a song's chord changes are compared to others in the Hooktheory database, highlighting progressions that deviate from typical patterns.
Concepts
Song Stats
●
Key
A Minor
Tempo
144 BPM
Meter
4/4
Genre
Video Game
Melody Range
E4 – A5
Mood
Tense, Complex, Upbeat, Moody
Most Used Chord
i
Chord Complexity
75
Chord Complexity: Tracks when a song goes beyond simple three-note chords—either by adding extra tones (like 7ths or add9s) or by borrowing notes from outside the key—creating richer, more sophisticated harmonies.
Melodic Complexity
98
Melodic Complexity: Reflects two factors: the use of notes outside the key and rhythmic syncopation, together capturing how intricate or surprising a melody feels.
Chord-Melody Tension
78
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
57
Chord Prog. Novelty: Measures how uncommon a song's chord changes are compared to others in the Hooktheory database, highlighting progressions that deviate from typical patterns.
Concepts
Song Stats
●
Key
A Minor
Tempo
144 BPM
Meter
4/4
Genre
Video Game
Melody Range
G#4 – C6
Mood
Tense, Complex, Unexpected, Upbeat, Moody
Most Used Chord
i
Chord Complexity
97
Chord Complexity: Tracks when a song goes beyond simple three-note chords—either by adding extra tones (like 7ths or add9s) or by borrowing notes from outside the key—creating richer, more sophisticated harmonies.
Melodic Complexity
96
Melodic Complexity: Reflects two factors: the use of notes outside the key and rhythmic syncopation, together capturing how intricate or surprising a melody feels.
Chord-Melody Tension
83
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
76
Chord Prog. Novelty: Measures how uncommon a song's chord changes are compared to others in the Hooktheory database, highlighting progressions that deviate from typical patterns.
Song Stats
●
Key
A Minor
Tempo
144 BPM
Meter
4/4
Genre
Video Game
Melody Range
E4 – E6
Mood
Tense, Complex, Unexpected, Upbeat, Moody
Most Used Chord
i
Chord Complexity
74
Chord Complexity: Tracks when a song goes beyond simple three-note chords—either by adding extra tones (like 7ths or add9s) or by borrowing notes from outside the key—creating richer, more sophisticated harmonies.
Melodic Complexity
99
Melodic Complexity: Reflects two factors: the use of notes outside the key and rhythmic syncopation, together capturing how intricate or surprising a melody feels.
Chord-Melody Tension
98
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
64
Chord Prog. Novelty: Measures how uncommon a song's chord changes are compared to others in the Hooktheory database, highlighting progressions that deviate from typical patterns.
Song Stats
●
Key
A Minor
Tempo
144 BPM
Meter
4/4
Genre
Video Game
Melody Range
E4 – E6
Mood
Tense, Complex, Unexpected, Upbeat, Moody
Most Used Chord
i
Chord Complexity
85
Chord Complexity: Tracks when a song goes beyond simple three-note chords—either by adding extra tones (like 7ths or add9s) or by borrowing notes from outside the key—creating richer, more sophisticated harmonies.
Melodic Complexity
98
Melodic Complexity: Reflects two factors: the use of notes outside the key and rhythmic syncopation, together capturing how intricate or surprising a melody feels.
Chord-Melody Tension
92
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
64
Chord Prog. Novelty: Measures how uncommon a song's chord changes are compared to others in the Hooktheory database, highlighting progressions that deviate from typical patterns.
About Attack of the Killer Queen
About the Key
A Minor
It is the most popular key among Minor keys and the 6th most popular among all keys. Minor keys, along with major keys, are a common choice for popular music.
i iv VI
Most Important Chords
The three most important chords, built off the 1st, 4th and 5th scale degrees are all minor chords (A minor, D minor, and E minor).
A Minor Cheat Sheet
Popular chords, progressions, downloadable MIDI files and more
About the Chord Progressions
| Section | Progression | Songs with this progression |
|---|---|---|
| Intro and Verse |
i
VII6
III
VI
V7sus4(hmin)
i
VIIadd6
|
No other theorytabs with this progression |
| Verse and Pre-Chorus |
i
III
II(lyd)
iv
V(maj)
i
VII
|
No other theorytabs with this progression |
| Chorus |
VI
i
V/v(maj)
VI
i
II(lyd)
II
|
No other theorytabs with this progression |
| Chorus Lead-Out |
i7
VII7/ii°
ii°42
i
VI
V(maj)
|
No other theorytabs with this progression |
| Pre-Outro |
VI
i
V/v(maj)
VI
i
II(lyd)
II
|
No other theorytabs with this progression |
About the Melody
Melody data is compiled from all analyzed melody sections, so depending on how a user analyzed a song, "melody" might include instrumental notes.
E4 – E6
Melody range across 24 semitones
0.64 beats/note
Across 279.8 beats of melody
Stepwise Motion
Jumpiness
Repeaty
85%
Diatonic
Percentage of notes within the song's key.
56%
Chord Tones
Percentage of notes that fall on a chord tone of the underlying harmony.
Smooth
Consonance
How smoothly the melody blends with the harmony (0 = dissonant, 1 = consonant).
Loose
Syncopation
How often the melody emphasizes off-beats. Higher = more syncopated.
About the Metrics
Chord Complexity
Chord Complexity tracks when a song goes beyond simple three-note chords—either by adding extra tones (like 7ths or add9s) or by borrowing notes from outside the key—creating richer, more sophisticated harmonies.
Melodic Complexity
Melodic Complexity reflects two factors: the use of notes outside the key and rhythmic syncopation, together capturing how intricate or surprising a melody feels.
Chord-Melody Tension
Chord-Melody Tension quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Progression Novelty
Chord Progression Novelty measures how uncommon a song's chord changes are compared to others in the Hooktheory database, highlighting progressions that deviate from typical patterns.
Chord-Bass Melody
Chord–Bass Melody evaluates how smoothly the bass moves between chords, scoring higher when it travels step-wise, ascending or descending, instead of jumping directly between root position chords.
Hooktheory's metrics are calculated against the entire database of analyzed songs, where 50 is the "average song." Learn more about each of these metrics here.
Chord Complexity
85
Measures how diverse and sophisticated the chord vocabulary is in this song.
Percentile: 85/100 — above average
Melodic Complexity
98
Measures the range, intervallic variety, and rhythmic complexity of the melody.
Percentile: 98/100 — above average
Chord-Melody Tension
92
Measures how much the melody notes clash or harmonize with the underlying chords.
Percentile: 92/100 — above average
Chord Prog. Novelty
64
Measures how unusual or unexpected the chord progressions are compared to common patterns.
Percentile: 64/100 — above average
Chord-Bass Melody
75
Measures the melodic movement of the bass notes across chord changes.
Percentile: 75/100 — above average
Song Data
Metrics Radar Chart
Attack of the Killer QueenAverage Song
BPM Comparison
Melody Distribution
1
2
3
4
5
6
7
Melodic Intervals
Distribution of note-to-note jumps in semitones (negative = downward, positive = upward)
Note Durations
How long each note is held (in beats)
Syncopation
How many notes fall on each level of metric strength (0 = on-beat, higher = increasingly off-beat)
Level 0
Notes that fall on the downbeat — the strongest metric position in the measure.
Level 1
Notes on a secondary strong beat (e.g. beat 3 in 4/4) — still firmly on the grid.
Level 2
Notes on the remaining primary beats (2 and 4 in 4/4) — moderate metric weight.
Level 3
Notes on eighth-note offbeats — between the primary beats. Audibly syncopated.
