How to write a simple drum machine that runs in the browser.
Demo
Below is just a screenshot of the drum machine. The code doesn't work in mobile browsers. To play with the demo, visit this site on a deskop or laptop computer.
Click the buttons to turn the beats on or off.
Video of Mary livecoding the drum machine
Annotated source code
The heavily annotated source code is 114 lines long.
Getting the code
Clone it from GitHub:$ git clone git@github.com:maryrosecook/drum-machine.git
Licence
The code is open source, under the MIT licence.