sorry to say, but the truth must out; this is a very boring merzbow cd. No variation, but sure, it's punishing noise for over 70 minutes. if you want noise by merzbow just as transgressively loud but more artistic, with interesting textures and variation - and actual differentiation of actual composition - try 'tauromachine'. (you can tell just by the better names of the tracks that he was more serious - and not conflictingly, more funny as well). and don't miss out on his project with mike patton, 'maldoror'. But 'pulse demon' is useful only as a foil, so your other cd's sound better afterwards. I'll say the same about other popular merzbow releases that are lauded mainly for their 'brutal harshness', and anyone who finds anything 'psychedelic' in this mess, is merely experiencing the predictable effects of pure loud noise; for added 'psychedelic' effect, stay up all night and then eat junk food for breakfast!