GeoSynth (Stands for Geometric Synthosizer) is an in-browser application that allows you to play and analyse music visually.
The app can be used as a musical education tool, a midi player/visualizer, a midi interface that can both input and output to connected instruments, or even an instrument in it's own right.
There are several toys (widgets) that allow for different ways to visualize notes and how they fit into the key and harmony of a song. Understanding the layout of these toys helps build a visual/geometric intution for music theory.
You can learn the shape of chords; you can visualize why certain chord progressions work; you can reason geometrically about key changes, you can find inspiration for song writing; you can develop a whole new way of thinking about music.
I hope you enjoy my passion project. Thank you for checking it out!