Music Key Reference
Major / minor scale notes, key signature, and diatonic chords.
Key signature
no sharps or flats
Scale notes
C
D
E
F
G
A
B
Diatonic chords
- IC
- iiD
- iiiE
- IVF
- VG
- viA
- vii°B
Major and natural minor scales with their key signatures and diatonic chord families. The I-IV-V-vi (or i-iv-v-VI in minor) chords cover most pop songs. Capital Roman numerals are major, lowercase are minor.
About
Pick a key and major/minor. The tool shows the scale notes, key signature (sharps or flats), and the diatonic chord family (I-IV-V-vi or i-iv-v-VI).
How to use
- Pick a key.
- Pick major or minor.
FAQ
What's the I-IV-V-vi pattern?+
The four most common chords in pop music. Hundreds of songs (from Don't Stop Believin' to Let It Be) use the same I-V-vi-IV progression in some order.