Unbelievable!!! Quadra is up towards the top of Sepultura's Best Albums. It harks back to Roots and Refuse Resist in MHO. It goes full on thrash, sprinkles roots and infuses the flavour with incredibly intelligent prog similar to Opeth's latest 2 albums. I cannot believe how good this album is. One of my favourite metal albums of all time, no hyperbole here!
