Alpha – Intro
Alpha – Verse
Alpha – Pre-Chorus
Alpha – Chorus
Alpha – Bridge
Alpha – Solo 1
Alpha – Solo 2
Alpha – Solo 3
Alpha – Instrumental
Alpha – Pre-Outro
Alpha – Outro 1
Alpha – Outro 2
Related Music Concepts
Inverted Chords
Using a different bass note to change a chord's sound
Extended Chords
Stacking thirds beyond the 7th to create more complex sounds
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
Chord Progression Novelty
How unusual the chord sequence is compared to other songs
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
Borrowed Chords
Using chords from parallel modes for contrast and emotion
Secondary Chords
Chords that temporarily shift the harmonic center
Non-Standard Mode
New scales and home base chords for a different mood
Song Stats
●
Key
F Major
Tempo
100 BPM
Meter
6/4
Genre
Classical, Video Game
Melody Range
G2 – C5
Mood
Smooth, Unexpected, Bright
Most Used Chord
iii
Chord Complexity
41
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
20
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
20
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
88
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
F Major
Tempo
100 BPM
Meter
6/4
Genre
Classical, Video Game
Melody Range
C4 – D6
Mood
Smooth, Complex, Unexpected, Bright
Most Used Chord
ii(add9)
Chord Complexity
84
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
39
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
23
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
96
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
B♭ Major
Tempo
100 BPM
Meter
6/4
Genre
Classical, Video Game
Melody Range
D2 – Bb6
Mood
Smooth, Simple, Bright
Most Used Chord
IV
Chord Complexity
18
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
68
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
17
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
28
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
B♭ Major
Tempo
100 BPM
Meter
6/4
Genre
Classical, Video Game
Melody Range
Bb3 – F6
Mood
Complex, Unexpected, Bright
Most Used Chord
IV
Chord Complexity
80
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
37
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
31
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
87
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
B♭ Major
Tempo
98 BPM
Meter
4/4
Genre
Classical, Video Game
Melody Range
G4 – D6
Mood
Smooth, Unexpected, Bright
Most Used Chord
I
Chord Complexity
58
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
97
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
9
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
79
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
B♭ Major
Tempo
124 BPM
Meter
4/4
Genre
Classical, Video Game
Melody Range
Bb2 – G6
Mood
Smooth, Unexpected, Bright
Most Used Chord
vi
Chord Complexity
40
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
59
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
10
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
65
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
B♭ Major
Tempo
135 BPM
Meter
4/4
Genre
Classical, Video Game
Melody Range
F4 – F6
Mood
Smooth, Complex, Unexpected, Bright
Most Used Chord
IV
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
61
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
10
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
97
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
B♭ Major
Tempo
105 BPM
Meter
4/4
Genre
Classical, Video Game
Melody Range
Bb3 – F5
Mood
Smooth, Complex, Unexpected, Bright
Most Used Chord
IV
Chord Complexity
92
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
36
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
10
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
90
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
G Minor
Tempo
138 BPM
Meter
4/4
Genre
Classical, Video Game
Melody Range
D4 – D7
Mood
Smooth, Complex, Unexpected, Moody
Most Used Chord
i(add9)
Chord Complexity
84
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
33
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
13
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
93
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
G Minor
Tempo
138 BPM
Meter
4/4
Genre
Classical, Video Game
Melody Range
G3 – A#5
Mood
Smooth, Complex, Unexpected, Moody
Most Used Chord
VI
Chord Complexity
86
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
51
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
17
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
88
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
G Dorian
Tempo
64 BPM
Meter
4/4
Genre
Classical, Video Game
Melody Range
A#4 – A5
Mood
Smooth, Complex, Unexpected, Mellow
Most Used Chord
ii
Chord Complexity
89
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
44
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
8
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
94
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
G Dorian
Tempo
64 BPM
Meter
4/4
Genre
Classical, Video Game
Melody Range
E4 – F5
Mood
Smooth, Complex, Unexpected, Mellow
Most Used Chord
ii
Chord Complexity
89
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
71
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
10
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
97
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
●
Tempo
100 BPM
Meter
6/4
Genre
Classical, Video Game
Melody Range
D2 – D7
Mood
Smooth, Complex, Unexpected, Bright
Most Used Chord
IV
Chord Complexity
80
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
60
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
11
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
89
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 Alpha
About the Key
F Major
It is the 6th most popular key among Major keys and the 7th most popular among all keys. Major keys, along with minor keys, are a common choice for popular songs.
I IV V
Most Important Chords
The three most important chords, built off the 1st, 4th and 5th scale degrees are all major chords (F Major, B♭ Major, and C Major).
F Major Cheat Sheet
Popular chords, progressions, downloadable MIDI files and more
About the Chord Progressions
| Section | Progression | Songs with this progression |
|---|---|---|
| Intro |
I
iii64
|
|
| Verse |
ii6add9
I6add9
IV7
ii6add9
iii7
IV9
iiadd9
|
No other theorytabs with this progression |
| Pre-Chorus |
IV
I
V6
|
|
| Chorus |
Vsus2
vi6add9
V6add9
IV7
I
V6add9
IV
|
|
| Bridge |
I
IV
I
vi6add4
|
|
| Solo 1 |
I
IV7
vi7
V
|
|
| Solo 2 |
IV9
viadd9
iii°65(mix)
IV9
ii6add4add9
IV7
vii°43add4
|
No other theorytabs with this progression |
| Solo 3 |
IV65
ii7sus4
IVadd9
I42(mix)
ii7
I6
IV7
|
No other theorytabs with this progression |
| Instrumental |
iadd9
VI65
|
|
| Pre-Outro |
iv9
III65
VI9
i9
iv9
v7
VI9
|
No other theorytabs with this progression |
| Outro 1 |
i
ii11
IIIsus2
v7
ii6
III11
VII7sus2
|
No other theorytabs with this progression |
| Outro 2 |
i
ii7add4
III7sus2
v7
ii6
III11
VII7sus2
|
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.
D2 – D7
Melody range across 60 semitones
1.66 beats/note
Across 836.5 beats of melody
Stepwise Motion
Jumpiness
Repeaty
100%
Diatonic
Percentage of notes within the song's key.
79%
Chord Tones
Percentage of notes that fall on a chord tone of the underlying harmony.
Edgy
Consonance
How smoothly the melody blends with the harmony (0 = dissonant, 1 = consonant).
Steady
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
80
Measures how diverse and sophisticated the chord vocabulary is in this song.
Percentile: 80/100 — above average
Melodic Complexity
60
Measures the range, intervallic variety, and rhythmic complexity of the melody.
Percentile: 60/100 — above average
Chord-Melody Tension
11
Measures how much the melody notes clash or harmonize with the underlying chords.
Percentile: 11/100 — below average
Chord Prog. Novelty
89
Measures how unusual or unexpected the chord progressions are compared to common patterns.
Percentile: 89/100 — above average
Chord-Bass Melody
65
Measures the melodic movement of the bass notes across chord changes.
Percentile: 65/100 — above average
Song Data
Metrics Radar Chart
AlphaAverage 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.
