Well, more like Slug, since atmosphere is just the name he uses when he produces under a guy named ant. Its Rap, Hip hop, whatever you call it, just not that bullshit 50-cent little wayne crap. Check out these songs if you havent heard of him, theyre some of his most diverse ones. He's been one of my favorite rappers for years now.
Love Life
Scapegoat- about tons of things that are used as scapegoats for other problems in the world, it speaks mad truth.
Like shrooms? check out Shrooms by Atmosphere and Sage francis.
Sunshine- Nice and Optimistic.
Sound is vibaration- slug and spawn kill together
If you do listen to him, check out these groups he's been in if you already haven't.
Deep puddle dynamics- Heavy cieling is a good song to start with
Dynospectrum- Unaligned sperm and fuck the bullshit are good starters.
Felt-(Slug and MURS from living legends)- Suzanne vega, 20 answers.
I have tons of other artist Ide love to share with people to try and gain some music myself, so ask for more or show me something.