I'm going to Berlin soon, from the 2nd to 6th. That leaves three evenings that I can see bands, so I've been investigating last.fm for listings.
I was surprised at just how much good stuff I managed to find.
Really gentle instrumental electronica type stuff. Extremely pleasant.
Rough-and-ready hardcore/screamo type fury. I actually really like these. Refused are in their top 8.
Vorwarts Schoner Weltenkotzer
More European screamo, in the vein of Belle Epoque or something. Proper screamo, with quiet twinkly bits, and DIY production.
Inventive electronica. Plenty of interesting sounds in here. With breathy vocals.
The Internet's pretty good sometimes.