[dwc]

I've had the best luck with electronica/techno. Long time favorites include heavier non-vocal Ministry, which has a nice cadence for typing. Lately I'm on to Aphex Twin's Drukqs double album.

Classical tends to draw my attention too much, as the good stuff is really complex and deep, and will pull me right out of flow when it gets to the tricky parts. Same problem with Jazz.

Most "easy listening" music makes me want to puke and throw things or stab someone, so I just don't go there.

[piranha]

Can you please point me to songs/albums by Ministry without vocals? Can't think of anything (not that I know a lot of their songs).

[dwc]

Many of the songs on Land of Rape and Honey, for instance, either have no vocals, or the vocals are repetitive bits that seem (to me) more part of the music than typical lyrical vocals.

* The Missing http://www.youtube.com/watch?v=0gzXpzDwwbI vocals don't bother me.

* Hizbollah http://www.youtube.com/watch?v=0JRxVov_0a0 has vocals I can't understand ;-)