KeyPad
Find chord connections in a playable harmonic lattice
Find nearby chords by their shared notes and hear how small movements on the grid create harmonic progressions.
Key idea
A Tonnetz arranges pitch classes by interval relationships. Neighboring triads can share notes, allowing a small geometric move to represent economical voice leading: some notes remain while others change.
Try this first
Play a major triad on the triangular grid, then move to a nearby chord that shares two notes. Listen to how a small movement changes the harmony. Trace a short sequence and replay it to connect the shape of the path with the progression you hear.
How to get started
- Tap notes or triangles to play chords.
- Pick a progression or trace your own.
- Use computer keys or MIDI to play live.
- Under Note layout, switch between triangular and square grids, or set your own right and up intervals.
Explore a little further
Try another experiment
Move from one major triad to a neighboring minor triad and identify the common notes. Compare this with a move to a more distant chord. Does the smaller visual move also sound smoother to you?
Good to know
KeyPad includes a Tonnetz and editable note grids. Nearby positions describe pitch relationships; their visual distance is not physical sound distance.
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