New UI Test – Section A
New UI Test – Mid-measure key change
New UI Test – new test
New UI Test – Section B
New UI Test – Stained, Brutal Calamity
New UI Test – Chorus
Related Music Concepts
Inverted Chords
Using a different bass note to change a chord's sound
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
Borrowed Chords
Using chords from parallel modes for contrast and emotion
Bassline Motion
How much the bass moves stepwise between chord roots
Basic Chords
Chords naturally found in the key
Secondary Chords
Chords that temporarily shift the harmonic center
Add Chords
A chord with an added tone that enriches its sound
Chord-Melody Tension
How much the melody clashes with the underlying chords
Chord Progression Novelty
How unusual the chord sequence is compared to other songs
Extended Chords
Stacking thirds beyond the 7th to create more complex sounds
Diminished Chords
A chord built from stacked minor thirds — dark and unstable
Fully Diminished 7ths
A four-note diminished chord that strongly pulls toward resolution
Suspended Chords
A chord with built in tension and release
Augmented Chords
A chord with a raised fifth that creates a bright, unresolved tension
Altered Chords
Altered (raised or lowered) notes create tension and complexity in chords
Song Stats
●
Key
C Major
Tempo
120 BPM
Meter
4/4
Melody Range
B1 – B6
Mood
Smooth, Complex, Unexpected, Bright
Most Used Chord
IV
Chord Complexity
82
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
0
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
0
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.
Song Stats
●
Key
A Minor
Tempo
125 BPM
Meter
4/4
Melody Range
F4 – D6
Mood
Classic, Moody
Most Used Chord
VI
Chord Complexity
29
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
53
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
53
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
4
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
C Major
Tempo
120 BPM
Meter
4/4
Melody Range
C4 – B6
Mood
Tense, Complex, Unexpected, Bright
Most Used Chord
V/ii
Chord Complexity
100
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
99
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
92
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
C Major
Tempo
120 BPM
Meter
4/4
Melody Range
B1 – B6
Mood
Smooth, Complex, Unexpected, Bright
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
0
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
0
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
100
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
E Minor
Tempo
90 BPM
Meter
4/4
Melody Range
B1 – G6
Mood
Complex, Unexpected, Moody
Most Used Chord
VI
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
92
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
47
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
83
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
C Major
Tempo
120 BPM
Meter
4/4
Melody Range
C4 – C5
Mood
Tense, Unexpected, Bright
Most Used Chord
V+(#5#11)
Chord Complexity
59
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
100
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
100
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
98
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
120 BPM
Meter
4/4
Melody Range
B1 – B6
Mood
Tense, Complex, Unexpected, Bright
Most Used Chord
i
Chord Complexity
100
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
100
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.
About New UI Test
About the Key
C Major
It is the most common key in all of popular music. 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 (C Major, F Major, and G Major).
C Major Cheat Sheet
Popular chords, progressions, downloadable MIDI files and more
About the Chord Progressions
| Section | Progression | Songs with this progression |
|---|---|---|
| Section A |
|
No other theorytabs with this progression |
| Mid-measure key change |
|
|
| New test |
|
|
| Section B |
|
|
| Stained, Brutal Calamity |
|
|
| Chorus |
|
|
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.
B1 – B6
Melody range across 60 semitones
0.87 beats/note
Across 1,132.3 beats of melody
Stepwise Motion
Jumpiness
Repeaty
88%
Diatonic
Percentage of notes within the song's key.
62%
Chord Tones
Percentage of notes that fall on a chord tone of the underlying harmony.
Mixed
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
100
Measures how diverse and sophisticated the chord vocabulary is in this song.
Percentile: 100/100 — above average
Melodic Complexity
99
Measures the range, intervallic variety, and rhythmic complexity of the melody.
Percentile: 99/100 — above average
Chord-Melody Tension
100
Measures how much the melody notes clash or harmonize with the underlying chords.
Percentile: 100/100 — above average
Chord Prog. Novelty
94
Measures how unusual or unexpected the chord progressions are compared to common patterns.
Percentile: 94/100 — above average
Chord-Bass Melody
100
Measures the melodic movement of the bass notes across chord changes.
Percentile: 100/100 — above average
Song Data
Metrics Radar Chart
New UI TestAverage 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.
Contributed by
Analyze a new section
How to contribute
History
Edit which section?
Section A
Mid-measure key change
new test
Section B
Stained, Brutal Calamity
Chorus
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