surprised no one mentioned nurse with wound/stephen stapleton
and what about the usual wire fodder? people like david toop?
kaffe matthews is fantastic live. i remember seeing her play in a festival making all the men look like complete idiots. she literally rocks with a laptop.
hecker (NOT tim hecker) was mind blowing when i first saw him at the ICA with his mego labelmates.
london sinfonietta did a concert playing iannis xenakis's pieces it was amazing.
others worth mentioning on the top of my head that hasnt made this thread yet:
no neck blues band