Twelve TheoryMath + Music Playground
Explore interactive music theory and music by numbers through Free Play, Math Mode, Chord Game, Circle Counting, the Triad Chart, Harmonic Cone, Waveforms, Harmonic Polygons, Tuning String, Sheet Music, Musical Circles, and Ear Training.
Interactive module
Major Scale Triads
The seven triads in C major, shown in their fixed chromatic positions.
Labels
Pink root plays all three notes while heldDistances show each move from the rootTap or hover over chord types and distances for definitions
| I | Root | 5 | 8 |
|---|---|---|---|
| vi | 1 | 5 | Root |
| IV | 1 | Root | 10 |
| ii | Root | 6 | 10 |
| vii° | 3 | 6 | Root |
| V | 3 | Root | 12 |
| iii | Root | 8 | 12 |
Press and hold a pink root to hear its three-note chord.
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