Dank I heard only one Kid Cudis song and first time I didn't liked It but when listening 2 more times It sounded fine to me. Now when listening this Kid Cudis song I can say his songs are not bad at all, It's not an old sound track, If I'm not wrong It's made In 2013 as I found on the internet what kind of music Is It, It's not rap for sure, Is It hip hop?
Each time he put out an album I would feel the same way. He changes and creates his own style and it's sorta weird at first but it grows on you. Though at this point, when he released satellite flight, I pretty much loved it from the start, though the musical ingenuity still grows on me.
I'd just call it kid cudi, his own style. Hiphop or rap would be close though, better then just about any rap there is today imo.