Music Theory & Chord Helper

Build chord progressions, explore scales, and learn music theory — interactive tools for every skill level

Key

Scale / Mode

Scale Notes

CDEFGAB

Happy, bright, uplifting

Scale on Piano

Chords in C Major (Ionian)

Click a chord to add it to your progression

Your Progression

BPM:120

Common Progressions

Chord Reference

Major

C-E-G

Minor

C-D#-G

Cdim

Diminished

C-D#-F#

Caug

Augmented

C-E-G#

Cmaj7

Major 7th

C-E-G-B

Cm7

Minor 7th

C-D#-G-A#

Dominant 7th

C-E-G-A#

Csus2

Suspended 2nd

C-D-G

Csus4

Suspended 4th

C-F-G

Cadd9

Add 9

C-E-G-D