My favorite part: look at the “Related Videos’ section. It includes a mishmash of weirdness, including a promo video for “Kokopelli Rising” by “Bing Futch”, a bland New Age album. The exact opposite of what Dave Wright does with his gourd.
If you’re Jeff Stolet, you design software to take inputs from infrared sensors, convert them to algorithms and then to MIDI note data, then send it to the piano. So, he plays complex piano music—by waving his hands in the air. Here’s the result: