An antihero is, put simply, someone who does heroic things but doesn't behave in a heroic way. Wolverine is a common example; he fights on the side of good, but he's a drinker, a smoker, and a bit of an all-round curmudgeon, none of which are normally considered to be heroic qualities.
Let's apply this trope to the music industry. A traditional 'hero' would be the label who put out catchy, accessible music that everybody instantly loves. Audio Antihero, on the other hand, have a slightly different approach:
"We know, we know. You THINK you want a squeaky-clean pop song, but deep down, that's not really what you're looking for. Here's the music that you really NEED: some wonky punk stuff, a folk song that sounds like it was recorded in the bowels of a ship, and a nine-minute droney thing."
I only came across Audio Antihero last year. The first AA release I listened to was There is Nothing More Frightening Than The Passing of Time by The Superman Revenge Squad Band, and while that one grabbed me more or less immediately, it was followed by left-turn after left-turn after left-turn.
