virtual keyboard

Translation .... by an octave, relative position-- chords

Reflection

Rotation: thirteen notes in "chromatic" scale

Glide Reflection

Visualizations of music - Example:

Notation: Conventional music notation:

Graphical score on YouTube Mendelssohn Violin Concerto

translations |
reflections |
reflections + |

glide |
reflections + |
rotations (2) |

reflections + |
rotations (2) + |
rotations (2) + |

rotations (4) |
reflections + |
rotations (4) + |

rotations (3) |
reflections + |
rotations (3) + |

rotations (6) |
reflections + |

Modify quadrilateral tilings using rotation.

Escher: Examples Search.