I'm a fan of ambient and instrumental hip hop for programming.

My personal favorites are pretty much anything by Nujabes (including the soundtracks for Samurai Champloo), Fat Jon, and DJ Okawari.

I also like some classic albums in the genre like Donuts by J Dilla, Dr. No's Oxperiment by Oh No, and Endtroducing by DJ Shadow.

I will sometimes go through essential charts I find to dive into new genres, and other times I'll pick a random artist and go through their entire discography start to finish.

I highly recommend doing that with Talk Talk, their transition from 80s pop to experimental is phenomenal.