Orange Sherbet Strumming, a minimal browser synth.
The above is a gif from the synth below. (If you are in the Tumblr dashboard, here is the the permalink for this post, where you can play with the synth). The notes are from the Dorian Mode. You can move your mouse over the visual to strum sounds. You can find the code on github. The audio is generated in the browser with the web audio API and requires chrome. The visuals are built with d3js.
turn audio on