Poll: Your preferred music for working?

What's your preferred music for working? (whatever you class as 'doing work', be that hacking or designing or just normal office/bureaucratic stuff)

This poll is entirely to judge opinions, not to find the 'best' music for working.

(Feel free to vote for more than one if you work with more then one kind of music.)

No EDM option?

Personally, it's whatever I can listen to that I can't sing along to. That can either be something purely instrumental (most of Pendulum's songs, e.g.), something in a different language (Sigur Ros), or mashups (Girl Talk).

Nothing electronic to choose from?

I subscribe to the view that music hinders concentration more than it favours it. Your brain is forced to multitask, which is inherently more difficult than concentrating on one line of thought. However, I have seen it working in a pavlovian way, signaling to the brain that "it's time to work". This can be useful when conditioning people who struggle to concentrate for long periods.