All of the first 5 are classics. I'd probably say 'Hvis' - the first track, Det Som Engang Var(yeah, confusing) is probably one of the most infinately enjoyable pieces of music ever. Like CrimsonFloyd here said, "extreemly dense and complex, but at the same time, ubelivably miniamalistic". Though, i do have a soft spot for the first album, being one of the first BM albums i heard. The ALBUM Det Som Engang Var has 'key to the gate' and 'Den Onde Kysten' on it.....yeah, get the first 5.