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

Church Modes

Compare seven movable patterns built on the same tonic.

Blue = odd · Pink = even

C major rotation grid

Every row uses the same seven notes. Only the starting note changes.

Odd-number runEven-number runThe final note repeats the starting note, which is why every pattern totals 8.

Labels
PrintablesPDF with number labelsPDF with letter labels
Appearance