Using @magenta/music in TypeScript

A demo of using @magenta/music as a dev dependency in a TypeScript project. Uses webpack to build, and TS to author the code.

Run:

yarn install  # or npm install
yarn build    # or npm run build
yarn serve    # or npm run serve

Navigate to http://127.0.0.1:8080, where you will see a small visualization of "Twinkle Twinkle Little Star".