Imagine you're camping, and the urge to sing strikes. You may be by yourself or with family, but you didn't bring your guitar or harmonica. If you have DrumPants, you can play more than 100 sounds or instruments. You can even compose.
On Google's home page, you can play on a synth complete with a four-track recorder and the ability to save your freestyle musicianship. The front-page Doodle honours the 78th birthday of the late Robert Moog, the inventor of the Moog synthesizer.