Killer Bob is not an accessible band. In fact, in front of a small but animated crowd of experimental music enthusiasts at Music House on Friday, it oftentimes felt like they specifically went out of their way not to be accessible. Their lead vocalist and guitarist, aptly named (you guessed it!) Bob, doesn’t sing so much as urgently repeat barely audible words into the microphone. Their music, which can fairly accurately be described as modern day Swans on meth, ranges from trance inducing to downright cacophonous, and sometimes makes the transition between the two in a matter of seconds.