Twelve TheoryMath + Music Playground
Explore interactive music theory and music by numbers through Free Play, Math Mode, Chord Game, Circle Counting, the Triad Chart, Chord Progressions, Church Modes, the Counterpoint Game, WTC, Dodecachordon, Harmonic Cone, the Harmonics Quiz, Frequency Chart, Harmonic Wave, Waveforms, Harmonic Polygons, Tuning String, Sheet Music, Musical Circles, and Ear Training.
Interactive module
C Major Scale Triads
The seven triads in C major, shown with the tonic chord kept on 1.
Scale
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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