While designing It’s easier to listen to regular music (singer-songwriter stuff). While programming it’s harder to not get distracted by lyrics, so I tend to listen to non vocal music. The later it get’s the harder the style, starting with classic movie scores and ending with dubstep/electro dance stuff (probably very European taste). All through spotify, super handy!
http://open.spotify.com/user/noregt/playlist/3gHscKEHhUhrP2GAn8sX5B