At this stage it looks like it will be a 3 band line-up, unless another bands steps forward. Had at least two bands each day this week tell me they can't make it. All fairly legit reasons, just bad timing.
The door price will be dropped a couple of dollars, so you can get yourself 1/4th of a drink to make up for the missing 4th band :p
It's a shame, but I have no doubt that the other 3 bands can hold their own. If I didn't think they were any good, they've not be on the line-up. Come on down, check them out, hear something a bit different.