Bob MOOG Google Doodle :: open sourced . [uses Javascript with Closure compiler] - http://code.google.com/p...
"This project contains most of the Web Audio pipeline from the Bob Moog Doodle that ran on the Google homepage on May 23rd, 2012. You can see the Doodle at: https://www.google.com/doodles... The intention of this open source project is to provide a moderately complex example of how one might use the Web Audio API to make a digital synthesizer on the web. You can use your mouse or computer keyboard to control the mini-synthesizer’s keys and knobs to make nearly limitless sounds. Keeping with the theme of 1960s music technology, we patched the keyboard into a 4-track tape recorder so you can record, play back and share songs via short links or Google+." - Adriano