Since I'm in the coding mood, and there was a request, I've decided to post an example of what is affectionately called "Happy Hardcore," which seems to have gotten its name from Anabolic Frolic's "Happy 2B Hardcore" albums.
These albums were all we listened to when we my friend and I did any kind of work, including some serious construction. The average 140 beats per minute is like brain crack. For people like me, it also shuts down the constant unnecessary thinking in my mind, and lets me focus 100% on my task.
So now; an example...
Your Serve - DJ Fear
For more information about Happy Hardcore music, consult your local library, or click here to pump it into your ears right now.