Sometimes when I'm listening to dubstep tracks non-stop (while sober) for a really long time, or ambient music, and then I stop, my brain feels "number". It's hard to explain. I feel really doped, nothing substantial, I just feel like my brain is no longer material and is just electronic matter inside my head. It feels pretty good.
Sometimes when I listen to some tracks like Trip-hop or Ambient I sometimes have strange thoughts, or a rise in creativity. I might post some of my artwork I make while im in these states.