Ozric Tentacles for me. With the exception of two songs that I can think of in their 30-album catalog, there are no vocalizations. Just trippy psychedelic space rock. It may not work for everyone, but it puts me in the zone and I can code without lyrical distraction.
"Perishes and Survives" labels change places when you adjust the sliders. This threw me off for a while until I realized that the data wasn't making sense.