At college, I used to sit in a room all day with a project group, and also three other project groups. It was weird, but every group had their own taste in music. My group liked alternative, 70's rock, psychedelic folk and sometimes poppy R&B. Another project group however, liked hardstyle a lot. It drove me fucking crazy, and sometimes I turned up a classic Rush album at the loudest volume possible to nullify their noise. Here's an example of this style of "music": http://www.youtube.com/watch?v=n0Q9zSxMECU
Definitely prefer hardcore and variations thereupon: Angerfist - Choices And Refalm, is this what you meant when you said 70's psychedelic stuff? The Lightning Seeds *The Life Of Riley*