Here’s a sweet deal on a gift that could make sense for the more adventurous music-makers in your life. Critter & Guitari is running a sale on the Organelle M that drops the price from $595 to $499 from now through December 2nd. At that price, the music computer may be hard to resist — it’s a do-it-all instrument that can stand in as a synth, sampler, sequencer, drum machine or virtually anything else if you have the right code.