xiu xiu
(if you're going to do that, say "waters, muddy." pardon my ignorance, but i reading "muddy waters" one doesn't assume that the person creating music under that name would go by it, as well. one would assume that such a person would go by mckinley morganfield, just as conor oberst doesn't go by "bright eyes" and thus you couldn't say "eyes, bright" for E.)