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

Sheet Music

Read ordinary notation on parity-colored staff lines and spaces.

C major

Available melodies: Twinkle, Twinkle, Little Star, Mary Had a Little Lamb, Ode to Joy, Row, Row, Row Your Boat, Deck the Halls, Jingle Bells, Silent Night, Old MacDonald Had a Farm, Für Elise, Half-Step Finder, Solfège Ladder, Home and Away, Mi, Sol, Ti, Do, Arpeggio Flight, Two-Octave Toccata, Interval Maze.

Computer keyboard1–90 or * = 10− = 11+ = 12/ = toggle octaveO / P = octaveT = next page

Twinkle, Twinkle, Little Star
Traditional · page 1/6
Current note1C · Do
𝄞441DoC1DoC8SolG8SolG10LaA10LaA8SolG
Piano octave 4

Choose a song, key, and tempo.

Keypad octaves 4–6
Printable pages

Download color-coded staff paper

OddEven

Choose the page settings, then download.

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