Acoustic Curves – Verse
Acoustic Curves – Chorus
Acoustic Curves – Bridge
Related Music Concepts
Secondary Chords
Chords that temporarily shift the harmonic center
Suspended Chords
A chord with built in tension and release
Non-Standard Mode
New scales and home base chords for a different mood
Borrowed Chords
Using chords from parallel modes for contrast and emotion
Song Stats
●
Key
E♭ Major
Tempo
84 BPM
Meter
4/4
Genre
Soundtrack/Score, Ambient/Downtempo, Experimental/Avant-Garde
Melody Range
Ab3 – C5
Mood
Smooth, Simple, Bright
Most Used Chord
IV
Chord Complexity
15
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
23
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
14
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
31
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 Dorian
Tempo
223 BPM
Meter
4/4
Genre
Soundtrack/Score, Ambient/Downtempo, Experimental/Avant-Garde
Melody Range
F2 – A#4
Mood
Smooth, Simple, Upbeat
Most Used Chord
i
Chord Complexity
17
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
35
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
21
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
31
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 Phrygian
Tempo
226 BPM
Meter
3/4
Genre
Soundtrack/Score, Ambient/Downtempo, Experimental/Avant-Garde
Melody Range
F2 – G#4
Mood
Complex, Unexpected, Upbeat
Most Used Chord
isus2
Chord Complexity
93
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
89
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
26
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
●
Keys
E♭ Major, F Dorian, C Phrygian
Tempo
84 BPM
Meter
4/4
Genre
Soundtrack/Score, Ambient/Downtempo, Experimental/Avant-Garde
Melody Range
F2 – C5
Mood
Smooth, Bright
Most Used Chord
i
Chord Complexity
55
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
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
45
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 Acoustic Curves
About the Key
E♭ Major
It is the 7th most popular key among Major keys and the 11st 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 (E♭ Major, A♭ Major, and B♭ Major).
E♭ Major Cheat Sheet
Popular chords, progressions, downloadable MIDI files and more
About the Chord Progressions
| Section | Progression | Songs with this progression |
|---|---|---|
| Verse |
vi
IV
I
V
IV/IV
I
|
|
| Chorus |
i
III
IV
|
|
| Bridge |
i
II
vii
i
II
III
♭isus2
|
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.
F2 – C5
Melody range across 31 semitones
0.61 beats/note
Across 143.0 beats of melody
Stepwise Motion
Jumpiness
Repeaty
95%
Diatonic
Percentage of notes within the song's key.
78%
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).
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
55
Measures how diverse and sophisticated the chord vocabulary is in this song.
Percentile: 55/100 — above average
Melodic Complexity
60
Measures the range, intervallic variety, and rhythmic complexity of the melody.
Percentile: 60/100 — above average
Chord-Melody Tension
17
Measures how much the melody notes clash or harmonize with the underlying chords.
Percentile: 17/100 — below average
Chord Prog. Novelty
45
Measures how unusual or unexpected the chord progressions are compared to common patterns.
Percentile: 45/100 — below average
Chord-Bass Melody
70
Measures the melodic movement of the bass notes across chord changes.
Percentile: 70/100 — above average
Song Data
Metrics Radar Chart
Acoustic CurvesAverage 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.
