Sleep – Intro
Sleep – Intro and Verse
Sleep – Verse
Sleep – Pre-Chorus
Sleep – Chorus
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
Secondary Chords
Chords that temporarily shift the harmonic center
Add Chords
A chord with an added tone that enriches its sound
Seventh Chords
Adding one more note to the basic chords
Bassline Motion
How much the bass moves stepwise between chord roots
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
57 BPM
Meter
4/4
Genre
Classical/Orchestral, Ambient/Downtempo
Melody Range
Ab3 – C5
Mood
Mellow, Bright
Most Used Chord
V
Chord Complexity
34
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
69
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
50
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
48
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♭ Major
Tempo
60 BPM
Meter
4/4
Genre
Classical/Orchestral, Ambient/Downtempo
Melody Range
F4 – F5
Mood
Tense, Unexpected, Mellow, Bright
Most Used Chord
I
Chord Complexity
63
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
42
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
76
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
71
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 Dorian
Tempo
63 BPM
Meter
4/4
Genre
Classical/Orchestral, Ambient/Downtempo
Melody Range
A#3 – D5
Mood
Smooth, Complex, Unexpected, Mellow
Most Used Chord
v
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
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
18
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
72
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 Minor
Tempo
51 BPM
Meter
4/4
Genre
Classical/Orchestral, Ambient/Downtempo
Melody Range
C3 – F5
Mood
Smooth, Unexpected, Mellow, Moody
Most Used Chord
iv
Chord Complexity
56
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
16
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
74
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♭ Major
Tempo
55 BPM
Meter
4/4
Genre
Classical/Orchestral, Ambient/Downtempo
Melody Range
Ab3 – Ab5
Mood
Tense, Mellow, Bright
Most Used Chord
IV
Chord Complexity
33
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
31
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
75
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
36
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
57 BPM
Meter
4/4
Genre
Classical/Orchestral, Ambient/Downtempo
Melody Range
C3 – Ab5
Mood
Unexpected, Mellow, Bright
Most Used Chord
IV
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
64
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
46
Chord-Melody Tension: Quantifies how often melody notes fall outside the current chord, producing dissonance that creates a sense of instability.
Chord Prog. Novelty
62
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 Sleep
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 |
|---|---|---|
| Intro |
IV
ii
vi
V
iii
IV
viadd9
|
No other theorytabs with this progression |
| Intro and Verse |
iii64
ii64
vi
V
IV
vi
iii
|
No other theorytabs with this progression |
| Verse |
v
ii
IV
i
v
VII
III
|
No other theorytabs with this progression |
| Pre-Chorus |
iv64
isus2
|
|
| Chorus |
vi
IV
iii
ii
V64
IV
iii
|
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.
C3 – Ab5
Melody range across 32 semitones
1.15 beats/note
Across 176.0 beats of melody
Stepwise Motion
Jumpiness
Repeaty
99%
Diatonic
Percentage of notes within the song's key.
69%
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
59
Measures how diverse and sophisticated the chord vocabulary is in this song.
Percentile: 59/100 — above average
Melodic Complexity
64
Measures the range, intervallic variety, and rhythmic complexity of the melody.
Percentile: 64/100 — above average
Chord-Melody Tension
46
Measures how much the melody notes clash or harmonize with the underlying chords.
Percentile: 46/100 — below average
Chord Prog. Novelty
62
Measures how unusual or unexpected the chord progressions are compared to common patterns.
Percentile: 62/100 — above average
Chord-Bass Melody
88
Measures the melodic movement of the bass notes across chord changes.
Percentile: 88/100 — above average
Song Data
Metrics Radar Chart
SleepAverage 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.
