In celebration of Dr. Robert Moog's birthday (he would have been 78 this year), Google chose to honour the inventor of the modern synthesiser with a Google Doodle this week in the form of the Minimoog, albeit with some Google-stylings on the main board and a vintage recording device.
Technically, this synthesiser is quite brilliant to be able to run in flash, if a little confusing at first as it has barely any labels for all the knobs. It can also be played with your keyboard (tab is the last key, bottom F) if you fancy jamming properly with it. Moog also posted clearer instructions on how to operate this synthesiser, although the page for this doodle at Google's site also has some directions as well.
RIP Bob Moog. You might be gone, but your inventions live on!
To play around and full instructions