Music Theory Reference
Chords, scales, keys & intervals for every note.20 chord types · 20 scale types · 13 intervals · Interactive piano visualization.
Choose a Note
Notes
12
Chromatic scale
Chord Types
20
Triads to extended
Scale Types
20
Modes to exotic
Total Combinations
480
Chords + Scales
Chord Types
C
Major
Triads
Cm
Minor
Triads
Cdim
Diminished
Triads
Caug
Augmented
Triads
Csus2
Suspended 2nd
Triads
Csus4
Suspended 4th
Triads
Cmaj7
Major 7th
Sevenths
Cm7
Minor 7th
Sevenths
C7
Dominant 7th
Sevenths
Cdim7
Diminished 7th
Sevenths
Cm7♭5
Half-Diminished 7th
Sevenths
CmMaj7
Minor Major 7th
Sevenths
Caug7
Augmented 7th
Sevenths
Cadd9
Add 9
Extended
Cmaj9
Major 9th
Extended
Cm9
Minor 9th
Extended
C9
Dominant 9th
Extended
C6
6th
Extended
Cm6
Minor 6th
Extended
C5
Power Chord
Power
Scale Types
Major (Ionian)
7 notes · Major Modes
Dorian
7 notes · Major Modes
Phrygian
7 notes · Major Modes
Lydian
7 notes · Major Modes
Mixolydian
7 notes · Major Modes
Aeolian (Natural Minor)
7 notes · Major Modes
Locrian
7 notes · Major Modes
Harmonic Minor
7 notes · Minor Variants
Melodic Minor (Ascending)
7 notes · Minor Variants
Major Pentatonic
5 notes · Pentatonic
Minor Pentatonic
5 notes · Pentatonic
Blues Scale
6 notes · Blues
Major Blues
6 notes · Blues
Whole Tone
6 notes · Exotic
Chromatic
12 notes · Exotic
Hungarian Minor
7 notes · Exotic
Japanese (In)
5 notes · Exotic
Hirajōshi
5 notes · Exotic
Arabian
7 notes · Exotic
Double Harmonic
7 notes · Exotic
📏 Intervals
Complete reference of all 13 intervals with semitone counts.
⭕ Circle of Fifths
Interactive circle of fifths with key signatures and relative minors.
🎹 All Chords
Browse all 240 chord combinations with piano visualization.