Chord Graph turns music theory into something you can see, hear, and reason about—
from a single focus chord to full 8-bar ideas, with explanations at every step.
Visualize harmony
Your focus chord sits at the center; the graph shows where harmony can move next.
Interactive graph centered on your focus chord, with neighbors you can tap to explore outgoing moves
Highlight suggested progression paths directly on the canvas
Inspector panel explains the selected chord or connection in plain language—not jargon for its own sake
See diatonic motion, dominants, modal color, substitutions, and other real relationships as edges between nodes
Discover progressions
Go from one chord to a full phrase, with style-aware ranking.
Ranked 4- and 8-bar progression ideas generated from your starting chord
Pop and Jazz style profiles that weight different harmonic moves
Next-chord suggestions when you want to build one step at a time
Optional target ending chord to steer where a progression lands
Analyze & experiment
Sketch, paste, pivot—then let the engine propose what fits.
Suggest tools: paste chords from a lead sheet or sketch (even just two chords) for completions or emotional alternatives
Progression analyzer for the path you are exploring on the graph
Diatonic defaults you control: triads, sus chords, or 7ths
Experiment without leaving the theory honest—every suggestion is scored, not random
Hear it
Audition ideas at the keyboard speed of thought.
Built-in audio preview for focus chords and full progressions
Tempo and loop controls for quick sketching
Stereo spread and reverb for a more musical audition
Theory that stays honest
Powered by a dedicated harmony engine—not a random chord wheel.
Keys, modes (major, minor, and common modes), triads through extensions, alterations, and slash chords
Suggestions are scored and explained so you learn why a move works
Whether you write songs, teach, arrange, or practice, the graph keeps function and voice-leading in view