Functions
Current Key: C Major
KEYS, CODES & MODES
A Visual Approach to Understanding Music
Tonic-Subdominant-Dominant Circle
The Foundation of Harmonic Movement: I-IV-V
How to Use
Notes/Chords: Toggle between single notes and full triads. Explore: Hover to hear sounds, click to lock your tonic. Functions: Play I-IV-V harmonic functions. Chromatic Colors: Each note has its spectrum color. White arms show I-IV-V.