What separates rap from poetry? Noname effectively straddles that line, with a plainspoken flow that might not make your head nod, but will make your mind run. Chance The Rapper hews closer to traditional rap, but sounds so buoyant he’s liable to bounce off the track and give you a bear hug. Open Mike Eagle loads his verses with jokes and Adventure Time references, never quite disguising his anger at the economic degradation making a creative life impossible. This whole set is full of silliness and wordplay, but don’t think for a second it’s not serious.